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The Astronomerssun

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10:31
10:31
10:31

How many exoplanets are there?

Since the first planet orbiting a Sun-like star was discovered in 1995, thousands of candidates have been. But how many are for sure? In this episode of Q&BA, I talk about the methods used to find exoplanets, and just how many we've found. [The aspect ratio is a bit messed up. I've figured out the problem, but can't fix it here. I'll have it worked out in the next video.]

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01:10:36
01:10:36
01:10:36

Search for Habitable Exoplanets - Sara Seager (SETI Talks)

SETI Talks archive: http://seti.org/talks For centuries people have wondered, "Are we alone?" With hundreds of planets now known to orbit other stars, we are finally able to begin answering the ancient questions, "Do other Earths exist? Are they common? Do any have signs of life? NASA's Kepler space telescope will soon tell us the statistical numbers of Earth-size planets orbiting sun-size stars. Beyond Kepler is the search for potentially habitable worlds around nearby, sun-like stars. Professor Seager will discuss how astrobiology and space engineering research will come together to enable us to discover and identify other Earth-like worlds.

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01:06:17
01:06:17
01:06:17

Main Show Only - Exoplanets - Coast to Coast AM

October 2012 Full shows @ http://www.youtube.com/user/MayanWarriors 200 classic shows Volumes 1 & 2 www.youtube.com/playlist?list=PLdA-7-ZlhQ7v3x5wXuWujvV8Vnkshh7cj www.youtube.com/playlist?list=PLdA-7-ZlhQ7st8aHye812dtzwrcfV7o3n http://jetstreamnews.com/ Date: 03-28-12 Host: George Noory Guests: Dimitar Sasselov In the first half of the show, Professor of Astronomy at Harvard University, Dimitar Sasselov, discussed the unprecedented breakthroughs in exoplanetary astronomy, and how they will shed new light on our place in the universe. He coined the term "super-Earth," which refers to rocky planets like Earth, only much larger. A number of such exoplanets have been discovered in the last few years, and recently there's been speculation that there could be billions of such super-Earths in our galaxy alone. While the Kepler Mission has excelled at discovering planets, they tend to be too far from Earth to adequately study their atmospheres and surfaces, he noted. So the next big step will be to discover planets that are closer to us and to look for signatures of life, he continued, adding that there's a proposal for a survey satellite called TESS which could locate planetary targets amongst the nearest stars for detailed viewing by the James Webb telescope (the successor to Hubble). Sasselov also talked about the transit of Venus on June 5th, the only time this planet will be seen moving between the Earth and the Sun this century. FAIR USE NOTICE: These Videos may contain copyrighted (©) material the use of which has not always been specifically authorized by the copyright owner. Such material is made available to advance understanding of ecological, political, human rights, economic, democracy, scientific, moral, ethical, and social justice issues, etc. It is believed that this constitutes a 'fair use' of any such copyrighted material as provided for in section 107 of the US Copyright Law. In accordance with Title 17 U.S.C. Section 107, this material is distributed without profit to those who have expressed a prior general interest in receiving similar information for research and educational purposes.

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02:30:51
02:30:51
02:30:51

Coast to Coast AM March 28 2012 Exoplanets and AI

Coast to Coast AM is a North American (U.S. and Canada) late-night radio talk show that deals with a variety of topics, but most frequently ones that relate to either the paranormal or conspiracy theories. The program currently airs seven nights a week 1:05 a.m. -- 5:00 a.m. Eastern Time (10:05 p.m. -- 2:00 a.m. Pacific Time). Originally created and hosted by Art Bell, as of 2012 the program is hosted on most nights by George Noory. According to estimates by Talkers Magazine, Coast to Coast AM draws approximately 3 million listeners, making it the most listened-to program in its time slot Format and subject matter The Coast to Coast AM format consists of a combination of live callers and long format interviews. The subject matter covers unusual topics and is full of personal stories related to callers. While program content is often focused on paranormal and fringe subjects, sometimes world class scientists such as Michio Kaku and Brian Greene are featured in long format interviews. Topics discussed include the Near-death experience, climate change, cosmology, quantum physics, remote viewing, hauntings, contact with extraterrestrials, psychic reading, metaphysics, conspiracy theories, Area 51, crop circles, cryptozoology, Bigfoot, the Hollow Earth hypothesis, and science fiction literature, among others. Since the September 11, 2001 attacks, the events of that day (as well as alternate theories surrounding them) and current U.S. counter-terrorism strategy have also become frequent themes. George Noory, the main host since Art Bell retired, also takes interest in the 2012 phenomenon and believes something will happen. Hosts George Noory hosts the show on weeknights and the first Sunday of every month, while John B. Wells hosts the show on Saturday nights, and Ian Punnett hosts the show on the second Sunday of every month. Las Vegas-based investigative journalist George Knapp hosts the 3rd and 4th Sunday of each month, and when there is a 5th Sunday, Rob Simone, Whitley Strieber or a fill-in will host the show. On some 3rd and 4th Sundays, Simone fills in for George Knapp. Punnett announced on December 3, 2011 that as of the first of the new year, he will be hosting the show one Sunday a month. He said that he is suffering from tinnitus, increasingly severe and accelerating hearing loss, and headaches, thus prompting him to take time off for treatment. John B. Wells, best known as a longtime professional voiceover announcer, took over as the Saturday night host. https://www.facebook.com/Youtubecomusersecretsocietiestoday https://twitter.com/jetstreamnews http://www.jetstreamnews.com/ http://www.jetnews.us Date: 03-28-12 Host: George Noory Guests: Dimitar Sasselov, Ben Goertzel In the first half of the show, Professor of Astronomy at Harvard University, Dimitar Sasselov, discussed the unprecedented breakthroughs in exoplanetary astronomy, and how they will shed new light on our place in the universe. He coined the term "super-Earth," which refers to rocky planets like Earth, only much larger. A number of such exoplanets have been discovered in the last few years, and recently there's been speculation that there could be billions of such super-Earths in our galaxy alone. While the Kepler Mission has excelled at discovering planets, they tend to be too far from Earth to adequately study their atmospheres and surfaces, he noted. So the next big step will be to discover planets that are closer to us and to look for signatures of life, he continued, adding that there's a proposal for a survey satellite called TESS which could locate planetary targets amongst the nearest stars for detailed viewing by the James Webb telescope (the successor to Hubble). Sasselov also talked about the transit of Venus on June 5th, the only time this planet will be seen moving between the Earth and the Sun this century. ------------------------------------ During the last hour, Dr. Ben Goertzel spoke about his work on artificial intelligence (AI) and its various applications. AI machines will excel in deciphering our modern economy and coming up with solutions, in a way that humans weren't evolved to do, he commented. Robot/AI nannies and housekeepers may be among the first machines people will have in their homes, he said, though the military could also use the technology to develop super soldiers. Goertzel, who moved to Hong Kong to work on AI projects, also talked about the "technological singularity," which he described as a point in time "when the progress of science and technology becomes so rapid that from the point of view of the human mind, it's essentially infinite." Inventor and futurist Ray Kurzweil has predicted that this transformative point could occur by 2045. The third hour of the show featured Open Lines about the rise in strange behaviors, such as the incident involving a Jet Blue pilot who had to be restrained.

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38:05
38:05
38:05

Earth Changes & Exoplanets with Mitch Batross

Earth changes expert Mitch Battros shared reports of recent volcanic activity and earthquakes, such as the 7.2 quake that just hit the Solomon Islands. He also touched on the discovery of new exoplanets made by the Kepler space telescope, noting they were quite dissimilar to Earth. Wikipedia An extrasolar planet, or exoplanet, is a planet outside the Solar System. A total of 838 such planets (in 661 planetary systems, including 125 multiple planetary systems) have been identified as of September 21, 2012. Estimates of the frequency of systems strongly suggest that more than 50% of Sun-like stars harbor at least one planet. In a 2012 study, each star of the 100 billion or so in our Milky Way galaxy is estimated to host "on average ... at least 1.6 planets." Accordingly, at least 160 billion star-bound planets may exist in the Milky Way Galaxy alone. Unbound free-floating planetary-mass bodies in the Milky Way may number in the trillions, with 100,000 objects larger than Pluto for every main-sequence star. For centuries, many philosophers and scientists supposed that extrasolar planets existed, but there was no way of knowing how common they were or how similar they might be to the planets of the Solar System. Various detection claims made starting in the nineteenth century were all eventually rejected by astronomers. The first confirmed detection came in 1992, with the discovery of several terrestrial-mass planets orbiting the pulsar PSR B1257+12. The first confirmed detection of an exoplanet orbiting a main-sequence star was made in 1995, when a giant planet was found in a four-day orbit around the nearby star 51 Pegasi. Due to improved observational techniques, the rate of detections has increased rapidly since then. Some exoplanets have been directly imaged by telescopes, but the vast majority have been detected through indirect methods such as radial velocity measurements. Most known exoplanets are giant planets believed to resemble Jupiter or Neptune. This generalization reflects a sampling bias, as massive planets are more easily observed. Some relatively lightweight exoplanets, only a few times more massive than Earth (now known by the term Super-Earth), are known as well; statistical studies now indicate that they actually outnumber giant planets[8] while recent discoveries have included Earth-sized and smaller planets and a handful that appear to exhibit other Earth-like properties. There also exist planetary-mass objects that orbit brown dwarfs and other bodies that "float free" in space not bound to any star; however, the term "planet" is not always applied to these objects. The discovery of extrasolar planets, particularly those that orbit in the habitable zone where it is possible for liquid water to exist on the surface (and therefore also life), have intensified interest in the search for extraterrestrial life. Thus, the search for extrasolar planets also includes the study of planetary habitability, which considers a wide range of factors in determining an extrasolar planet's suitability for hosting life.

Channels: Observational astronomy 

Added: 2615 days ago by Ordonomundi

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04:08
04:08
04:08

Kepler 22b - a planet in a star's habitable zone

Astronomers announced the discovery of Kepler 22b, a planet orbiting a star not unlike our own sun at a distance where life can thrive. The discovery was announced by a team of astronomers using the Kepler Space Telescope. Launched in 2009, Kepler's sole purpose is to hunt for earth like worlds around other stars. Unlike other telescopes, Kepler stares unblinkingly at a region of the sky in the constellation of Cygnus the Swan. It's 95 megapixel camera monitors 150,000 stars in its field of view. But earth-like planets are impossible to directly image using our best telescopes; they are simply lost in the glare of their parent stars. Instead, Kepler monitors the slightest of changes in brightness of the star as its planet transits in front of it during its orbit. Using this technique, Kepler has discovered 28 exoplanets, and as many as 1500 possible new worlds are awaiting confirmation. Over time, the light from Kepler 22 briefly flickered by 1/2 of 1/1000 of a percent once every 290 days. Astronomers quickly understood that this was a planet within Kepler 22's habitable zone. A habitable zone is a range of distances around a star where the temperature is neither too hot, nor too cold, to support life. A habitable zone around a hotter star would be farther out, while a habitable zone around a cooler star would be closer in. Given any star's temperature, there is an orbit where the temperature is just right for life. Kepler 22b's orbital period places the planet within Kepler 22's habitable zone. The star at Kepler 22 is almost identical to our sun, just 220K cooler, so its habitable zone is slightly closer, making Kepler 22b a strong candidate for finding life. Kepler 22b is 2.4 times the diameter of earth, placing it somewhere between earth and neptune in size. But so far we know nothing else about this world; not its composition, or if it even has an atmosphere inside of which life could survive. To answer these questions, astronomers will need to use different types of telescopes at optical and infrared wavelengths to determine what kind, if any, atmosphere exists at Kepler 22b. At 600 light years away, we will not be able to visit Kepler 22b anytime soon to see for ourselves if life really does exist there. But that hasn't stopped the SETI institute from using the Allen Telescope Array from listening in for any possible artificial signals coming from Kepler 22b...just in case. Meanwhile, the hunt for earthlike worlds continues with the Kepler telescope, and an ever-growing archive of data is being produced. And we need your help sorting through it. Planethunters.org is a site where anyone can log in to examine Kepler's data, and help identify the telltale signal of orbiting planets. Could Kepler 22b really be a second Earth? That remains to be seen. But what is truly remarkable is that we are now able to detect worlds orbiting within stars' habitable zones. Kepler 22b is only the first of many more such worlds surely to be discovered. Life-bearing planets have long been speculated; Kepler 22b is a major step toward knowing they truly exist.

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01:10
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01:10

Two New Planets Found in Beehive Star Cluster | NASA Science Exoplanet Extrasolar Sun HD Video

Visit my website at http://www.junglejoel.com - two large "hot Jupiter" planets have been discovered orbiting two different sun-like stars in the Beehive Star Cluster (also known as Praesepe), located in the constellation of Cancer, the crab. The stars are Pr0201, and Pr0211. The planets are Pr0201b, and Pr0211b. Please rate and comment, thanks! Credit: NASA JPL CalTech

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00:53
00:53
00:53

NASA's Spitzer Space Telescope Finds Possible Exoplanet Smaller Than Earth

NASA's Jet Propulsion Laboratory Pasadena, CA - Astronomers using NASA's Spitzer Space Telescope have detected what they believe is a planet two-thirds the size of Earth. The exoplanet candidate, called UCF-1.01, is located a mere 33 light-years away, making it possibly the nearest world to our solar system that is smaller than our home planet. Exoplanets circle stars beyond our sun. Only a handful smaller than Earth have been found so far. Spitzer has performed transit studies on known exoplanets, but UCF-1.01 is the first ever identified with the space telescope, pointing to a possible role for Spitzer in helping discover potentially habitable, terrestrial-sized worlds.

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01:30
01:30
01:30

Journey to the Exoplanets iPad app (preview)

Explore the mysterious planets outside our Solar System in this new immersive iPad app from Scientific American and Farrar, Straus and Giroux. Journey to the Exoplanets is a groundbreaking hands-on introduction to the distant planets that continue to be discovered outside our Solar System. This app lets you: - VIEW OVER ONE HUNDRED STUNNING IMAGES: All the incredible artwork of renowned, Hugo-award-winning illustrator Ron Miller - VISIT THE SURFACES OF EXOPLANETS: Use your iPad's accelerometer or gyroscope control to get a panoramic look around an exoplanet's surface, as if you are really there. - PLANET BUILDER: Create your own exoplanet with the 3D Planet Builder feature. - FILTERING STARLIGHT: See how different types of stars change the appearance of plants on exoplanets with the Filtering Starlight feature. - STARS IN 3D: Interact with the 3D Star feature, which shows twenty stars within fourteen light years from the Sun. - PINCH AND ZOOM: Zoom in on the planets in the Exoplanets Gallery. - AUDIO TOUR GUIDE: Listen to commentary from astrobiologist Caleb A. Scharf as you interact with the images in the Exoplanets Gallery. - GUIDED TOUR: Learn all about exoplanets with Scientific American Contributing Art Director Edward Bell. - TIMELINE: Take a journey through the multi-touch timeline of key discoveries in the history of astronomy. - SIZE CHART: Compare and contrast the size of different exoplanets in the Planet Size Chart. - LITTLE SCIENTIST: Try out basic astronomy experiments. - EXPERT VIEWS: Read essays and a Q&A from planetary experts including Lawrence Krauss, Jim Kasting, Sara Seager, and Scientific American's John Matson - READ A FOREWORD AND WATCH A VIDEO INTRO: From Scientific American Editor-in-Chief, Mariette DiChristina. - AND MUCH, MUCH MORE Journey to the Exoplanets provides science buffs, space art enthusiasts, backyard astronomers, and young adults, with an extraordinarily rich experience. Until we figure out teleportation and hyperdrive, Journey to the Exoplanets is the next best thing to being there. - Primary text by Edward Bell - Art by Hugo Award-winning illustrator Ron Miller - Foreword and video introduction by Mariette DiChristina, Editor in Chief of Scientific American Available on iTunes and the App Store: http://itunes.apple.com/us/app/journey-to-the-exoplanets/id463532472?mt=8 For more information, visit: http://www.the-exoplanets.com/ Follow us at: http://twitter.com/theexoplanets Copyright: © 2011 Scientific American

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39:36
39:36
39:36

28.3.2012 - 1/4 - Exoplanets & AI

Image from http://www.thepopfoto.com Mp3 http://www. 4shared. com/mp3/RcXBvWWX/Coast_To_Coast_AM_-_2832012_-_.html Guests: Dimitar Sasselov, Ben Goertzel Exoplanets: In the first half of Wednesday's show, Professor of Astronomy at Harvard University, Dimitar Sasselov, discussed the unprecedented breakthroughs in exoplanetary astronomy, and how they will shed new light on our place in the universe. He coined the term "super-Earth," which refers to rocky planets like Earth, only much larger. A number of such exoplanets have been discovered in the last few years, and recently there's been speculation that there could be billions of such super-Earths in our galaxy alone. While the Kepler Mission has excelled at discovering planets, they tend to be too far from Earth to adequately study their atmospheres and surfaces, he noted. So the next big step will be to discover planets that are closer to us and to look for signatures of life, he continued, adding that there's a proposal for a survey satellite called TESS which could locate planetary targets amongst the nearest stars for detailed viewing by the James Webb telescope (the successor to Hubble). Sasselov also talked about the transit of Venus on June 5th, the only time this planet will be seen moving between the Earth and the Sun this century. Artificial Intelligence: During the last hour, Dr. Brian Goertzel spoke about his work on artificial intelligence (AI) and its various applications. AI machines will excel in deciphering our modern economy and coming up with solutions, in a way that humans weren't evolved to do, he commented. Robot/AI nannies and housekeepers may be among the first machines people will have in their homes, he said, though the military could also use the technology to develop super soldiers. Goertzel, who moved to Hong Kong to work on AI projects, also talked about the "technological singularity," which he described as a point in time "when the progress of science and technology becomes so rapid that from the point of view of the human mind, it's essentially infinite." Inventor and futurist Ray Kurzweil has predicted that this transformative point could occur by 2045.

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11:00
11:00
11:00

Exoplanet Exploration: PlanetQuest Historic Timeline

http://www.facebook.com/ScienceReason ... Exoplanet Exploration: NASA PlanetQuest Historic Timeline The NASA interactive multimedia timeline traces the search for extrasolar planets, from ancient philosophical speculation to modern discoveries. --- Please SUBSCRIBE to Science & Reason: • http://www.youtube.com/Best0fScience • http://www.youtube.com/ScienceTV • http://www.youtube.com/FFreeThinker --- Exoplanet Exploration: Planet Quest Key Milestones • 450 B.C.: Greeks ponder the existence of other worlds • 1750: Wright describes the Milky Way as a massive disk of stars • 1992: Woszczan and Frail discover rocky planets • 1995: Mayor and Queloz find a planet at 51 Pegasi • 1999: First transiting exoplanet observed • 2005: Spitzer observed direct light from an exoplanet • 2008: First visible-light exoplanet images released --- Are we alone? Searching for Earthlike Worlds For centuries, human beings have pondered this question. Medieval scholars speculated that other worlds must exist and that some would harbor other forms of life. In our time, advances in science and technology have brought us to the threshold of finding an answer to this timeless question. The recent discovery of numerous planets around stars other than the sun confirms that our solar system is not unique. Indeed, these "exoplanets" appear to be common in our galactic neighborhood. The exoplanets we have discovered so far are giants, like Jupiter and Saturn. They are unlikely to support life as we know it. But some of these planetary systems might also contain smaller, terrestrial planets like Mars and Earth. Over the next 15 years, NASA is embarking on a bold series of missions to find and characterize new worlds. These will be the most sensitive instruments ever built, capable of reaching beyond the bounds of our own solar system. The Keck Interferometer combines the light of the world's largest optical telescopes, extending our vision to new distances. Using a technique known as interferometry, the Keck will study dust clouds around stars where Earthlike planets may be forming. NASA's Kepler Mission, scheduled to launch in 2009, will survey our region of the Milky Way galaxy to detect and characterize hundreds of Earth-size and smaller planets. It will tell us whether planets like Earth are common or rare in our galaxy. SIM PlanetQuest, to follow Kepler, will measure the distances and positions of stars with unprecedented accuracy. SIM's precision will allow us to locate planets in the habitable zones around nearby stars. Finally, the Terrestrial Planet Finder will build upon the legacy of all that have gone before it. With an imaging power 100 times greater than the Hubble Space Telescope, the Terrestrial Planet Finder observatories will provide the first photographs of nearby planetary systems. We will analyze the atmospheres of these distant worlds, looking for carbon dioxide, water and ozone. The substantial presence of all three gasses would suggest that life is present. Such a discovery would at last provide convincing evidence that we are not alone. We will have found another Earth. Follow the history of planet hunting from science fiction to science fact with NASA's PlanetQuest Historic Timeline at http://planetquest.jpl.nasa.gov/timeline/ The interactive PlanetQuest web feature, developed by JPL, conveys the story of exoplanet exploration through a rich tapestry of words and images spanning thousands of years, beginning with the musings of ancient philosophers and continuing through the current era of space-based observations by NASA's Spitzer and Kepler missions. The timeline highlights milestones in culture, technology and science, and includes a planet counter that tracks the pace of exoplanet discoveries over time. • More information about exoplanets and NASA's planet-finding program: http://planetquest.jpl.nasa.gov • 3D New Worlds Atlas - A visual guide to exoplanets: http://planetquest.jpl.nasa.gov/atlas/atlas_index.cfm --- Related videos: NASA/Spitzer Hidden Universe (Episode 4): Night And Day On An Alien World • http://www.youtube.com/watch?v=tvOq2bDt-FI NASA/Spitzer Hidden Universe (Episode 16): The X-Planets • http://www.youtube.com/watch?v=8WXbVi_ppqQ Hubblecast 12: An Extrasolar Planet's Atmosphere • http://www.youtube.com/watch?v=VDmvr4rEZKU Hubblecast 14: Organic Molecules On Extrasolar Planets • http://www.youtube.com/watch?v=Lxs9Pmxy5MA ESOcast 11: Exoplanets Galore - 32 New Extrasolar Planets Found • http://www.youtube.com/watch?v=UcJuhE-99Xg ESOcast 18: Exoplanet Caught On The Move • http://www.youtube.com/watch?v=JDTXnodQIC4 The Webb Space Telescope (JWST): Finding Earth-like Planets • http://www.youtube.com/watch?v=r8eYB_0_d84 .

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05:55
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05:55

ESOcast 18: Exoplanet Caught on the Move

For the first time, astronomers have been able to directly follow the motion of an exoplanet as it moves to the other side of its host star. The planet has the smallest orbit so far of all directly imaged exoplanets, lying as close to its host star as Saturn is to the Sun. Scientists believe that it may have formed in a similar way to the giant planets in the Solar System. This discovery proves that gas giant planets can form within discs in only a few million years, a short time in cosmic terms. ________________________________________________________________ Un exoplaneta captado en movimiento. Por primera vez, los astrónomos han sido capaces de seguir directamente el movimiento de un exoplaneta desplazándose desde un lugar a otro de su estrella anfitriona. El planeta posee la órbita más pequeña que se conoce de todos los exoplanetas fotografiados directamente, con una distancia a su estrella similar a la que existe entre Saturno y el Sol. El descubrimiento prueba que los planetas gaseosos pueden formarse al interior de discos en sólo unos pocos millones de años, un breve tiempo en térmicos cósmicos. ________________________________________________________________ Visual design and editing: Martin Kornmesser and Luis Calçada. Cinematography: Peter Rixner. Editing: Herbert Zodet. Web and technical support: Lars Holm Nielsen and Raquel Yumi Shida. Written by: Henri Boffin and Eric Hal Schwartz. Host: Dr. J. Narration: Gaitee Hussain. Music: John Dyson (http://www.johndysonmusic.com/ - from the album "Darklight"). Footage and photos: ESO. Directed by: Herbert Zodet. Executive producer: Lars Lindberg Christensen.

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27:31
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27:31

ToV 2012: James Graham - The Transit of Venus and the Search for Exoplanets

Speaker: Professor James Graham, Director, Dunlap Institute for Astronomy and Astrophysics, University of Toronto From the Transit of Venus 2012 Symposium, held Saturday 28 April 2012 at the University of Toronto. The transit of Venus is a rare astronomical event where Venus, as seen from Earth, passes across the face of the sun. This Symposium provided scientific, historical, cultural, artistic, and educational perspectives for the 5 June 2012 transit of Venus, the last one visible during the 21st century. Sponsors: The University of Toronto Faculty of Arts and Science (Dean's Student Initiative Fund); Department of Astronomy and Astrophysics; Dunlap Institute of Astronomy and Astrophysics; Institute for the History and Philosophy of Science and Technology; St. Michael's College; Royal Astronomical Society of Canada. For more on the Transit of Venus, visit http://universe.utoronto.ca/special/transit2012

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02:10
02:10
02:10

Exoplanet HD85512b - Another super-Earth

The first part of this video shows a zoom into the Vela Constellation (The Sail) until the Sun-like star HD 85512 appears. From then on an artist's impression of exoplanet HD 85512b shows this super-Earth orbiting its Sun. This planet is only one of sixteen super-Earths discovered by the HARPS instrument on the 3.6-metre telescope at ESO's La Silla Observatory, and one of more than 50 new exoplanets discovered during 2011. HD 85512 b is about 3.6 times as massive as the Earth, and may harbor life, since it is located at the edge of the habitable zone around the star, where liquid water can exist. All images made by the European Southern Observatory (ESO), M. Kornmesser, A. Fujii and Digitized Sky Survey 2. Background music by RENALD DE MATREXASSE - "Vingt-deux Janvier" from the album "Ephémérides-Janvier"; released by its author under an Attribution, Non-commercial, Share-alike, 3.0 Creative Commons License.

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09:32
09:32
09:32

Hubble's Universe: Extrasolar Planets

http://facebook.com/ScienceReason ... Hubble's Universe Unfiltered (Episode 7): Eye Spy A Planet (Part 2/2) - Extrasolar Planets. Up until the 1990s, we only knew of the planets in our own solar system. Since then, we have discovered over 300 planets orbiting other stars (extrasolar planets, exoplanets). However, most of these planets were found when scientists observed the effect of the planet's gravity upon their host stars. Astronomers could not show the world what we wanted most: a visible light picture of a planet around a star like the Sun. That situation changed in November 2008 with a discovery by the Hubble Space Telescope. Join us for the story that begins a new era in our knowledge of planetary systems. --- Please SUBSCRIBE to Science & Reason: • http://www.youtube.com/Best0fScience • http://www.youtube.com/ScienceTV • http://www.youtube.com/FFreeThinker • http://www.youtube.com/RationalHumanism --- Hubble Directly Observes Planet Orbiting Fomalhaut http://hubblesite.org/newscenter/archive/releases/2008/39/ --- Notes - Note that Hubble's discovery of Fomalhaut b is billed as the "first visible-light snapshot of a planet orbiting another star." It is important to note that the first direct detection of a planet will likely turn out to be the planet known as 2M1207 b. However, the host, 2M1207, is not a full-fledged star, but a brown dwarf (see below). In addition, pictures of three planets around HR 8799, released the same day as the Fomalhaut discovery, were taken in the infrared. - Let me clarify about 2M1207. It has less than 3% the mass of our Sun, roughly 25 times the mass of Jupiter. That mass places it in the brown dwarf category: large enough to ignite deuterium fusion in its core (thus not a planet), but not large enough for hydrogen fusion (thus not a star). Brown dwarfs glow faintly at formation and then spend the rest of their lives cooling and fading away. Brown dwarfs are generally thought to be those objects with between 15 and 70 times the mass of Jupiter. - I wanted to make a joke that what the Hubble image of Fomalhaut looked most like is the "Eye of Sauron" from the "Lord of the Rings" movies. However, New Line Cinema did not respond to my requests for permission, and my producer would not let me use the image in the podcast. That joke is one reason why the episode is called "Eye Spy." - A betting astronomer might have chosen Beta Pictoris as the first star around which a planet would have been seen. We have been getting intriguing evidence that planets should be there for more than a decade. However, since the disk in the Beta Pic system is roughly perpendicular to our line of sight, any planets will travel in front of and behind the star from our point of view. Hence, we could only observe them well during parts of their orbits. Face-on systems, like HR 8799, are much more favorable for direct images. - If confirmed, the Beta Pictoris planet would indicate that giant planets can form quickly. Beta Pictoris is about 12 million years old. We believe that giant planets must form within the first 10 or so million years of a developing system, as winds and radiation from newborn stars should remove the gas from the system on that timescale. A giant planet needs to accrete some of that gas during its formation, and thus must form in millions of years. In contrast, it is thought that Earth may take as much as a couple hundred million years to form. • http://hubblesite.org/ --- Hubble's Universe Unfiltered is a collection of video podcasts. Each episode offers an in-depth explanation of the latest news story or image from the Hubble Space Telescope, presented by astronomer Frank Summers. • http://hubblesite.org/explore_astronomy/hubbles_universe_unfiltered/ .

Channels: Observational astronomy 

Added: 2615 days ago by Ordonomundi

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05:53
05:53
05:53

A New Era In Exoplanet Science,good

Beautiful orrery(solar system model) avaiable in : http://www.orrerystore.com/orrery_sale1.html .Science & Reason on Facebook: http://tinyurl.com/ScienceReasonESOcast 20: Richest planetary system discovered - A new era in exoplanet science (Release date: 24 August 2010).Astronomers using ESO instruments have discovered a remarkable extrasolar planetary system that has some striking similarities to our own Solar System. At least five planets are orbiting the Sun-like star HD 10180, and the regular pattern of their orbits is similar to that observed for our neighbouring planets. One of the new extrasolar worlds could be only 1.4 times the mass of the Earth, making it the least massive exoplanet ever found. This video podcast explains how these faraway planets were detected and exactly what we know about them.---Please subscribe to Science & Reason:• http://www.youtube.com/Best0fScience• http://www.youtube.com/ScienceMagazine• http://www.youtube.com/ScienceTV• http://www.youtube.com/FFreeThinker---Astronomers using ESO's world-leading HARPS instrument have discovered a planetary system containing at least five planets, orbiting the Sun-like star HD 10180. The researchers also believe the system has two other planets, one of which would have the lowest mass ever found, making the system similar to our own Solar System in terms of the number of planets. Furthermore, the scientists find that the location of the planets follows a regular pattern, as also seen in our own Solar SystemThe team of astronomers used the HARPS spectrograph, attached to ESO's 3.6-metre telescope at La Silla, Chile. HARPS is an instrument with unrivalled stability and great precision, and the world's most successful exoplanet hunter. The astronomers, led by Christophe Lovis from the Geneva Observatory, studied the Sun-like star HD 10180 over a period of six years! This star is located 127 light-years away in the southern constellation Hydrus ("the Male Water Snake").Thanks to the 190 individual HARPS measurements, the astronomers detected the wobbles of the star caused by five or more planets. The five strongest signals correspond to planets with Neptune-like masses — between 13 and 25 Earth masses — which orbit the star in between 6 to 600 days. The astronomers have also strong reason to believe that two other planets are present. One would be a Saturn-like planet orbiting in 2200 days. The other, having a mass of only about 1.4 times that of the Earth would be the least massive exoplanet ever discovered. This suspected planet is very close to its host star and so it is likely to be very hot. One 'year' on this planet lasts only 1.18 Earth-days!The newly discovered Solar System is unique in several respects. First of all, with at least five Neptune-like planets lying within a distance equivalent to the orbit of Mars, this system is more populated than our own Solar System in its inner region, and has many more massive planets there. Furthermore, the system probably has no Jupiter-like gas giant. In addition, all the planets seem to have almost circular orbits. Dynamical studies of the new system reveal complex interactions between planets and give us insights into its long-term evolution.Using the new discovery as well as data for other planetary systems, the astronomers discovered that the locations of the planets seem to follow a regular pattern — similar to the "Titius-Bode" law that exists in our Solar System. This could be a general signature of how planetary systems form. Another important result is that all very massive planetary systems are found around massive and metal-rich stars, while the four lowest-mass systems are found around lower-mass and metal-poor stars. These properties confirm current theoretical models.There is no doubt that this remarkable discovery highlights the fact that we are now entering a new era in exoplanet science: the study of complex planetary systems and not just of individual planets!!And with HARPS, European astronomers will be a driving force behind this transition.---ESOcast is produced by ESO, the European Southern Observatory. ESO, the European Southern Observatory, is the pre-eminent intergovernmental science and technology organisation in astronomy designing, constructing and operating the world's most advanced ground-based telescopes.• http://www.eso.org/.

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Added: 2615 days ago by Ordonomundi

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07:31
07:31
07:31

Magnetars - brighter than a galaxy, heavier than the Sun

http://en.rian.ru/talk_shows/20110331/163311824.html Scarcely a week passes without scientists discovering new "threats to humanity." These threats are often considerably exaggerated and gladly spread by mass media. Meteorites hitting the Earth, exploding stars, fading Sun, you name it... Sergei Popov, Ph.D., senior research associate at the Sternberg Astronomical Institute, tries to separate the wheat from the chaff to find out where the real danger lies and what just the product of journalists' fevered imaginations is. He also talks about magnetars -- the most extreme form of neutron stars.

Channels: Extragalactic astronomy 

Added: 2615 days ago by Ordonomundi

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02:51
02:51
02:51

Magnetosphere & SGR 1806 20 Super Burst

I have reconstructed the data from this event from 12-27-2004 . Known as the Super Burst , It was from Source SGR1806-20 a ultra-magnetic neutron star -- magnetar. In this movie is the Nict Simulation for the day , And it is noteworthy that the activity that has occurred in 2009 also from a Neutron Star would suggest the recent Burst are either closer or they are stronger then this Super Burst from 2004.The magnetic field more or less snapped in a process scientists call magnetic reconnection except this was not due to the Sun but from a Cosmic Burst.The magnetic field around a neutron star -- magnetar. is about 1,000 trillion gauss, strong enough to strip information from a credit card at a distance halfway to the Moon.Gamma rays are the highest form of radiation on the electromagnetic spectrum, which includes X-rays, visible light and radio waves too.The star, named SGR 1806-20, spins once on its axis every 7.5 seconds, and it is surrounded by a magnetic field more powerful than any other object in the universe. The result of this burst saw a massive release of magnetic energy .The blast was 100 times more powerful than any other similar eruption witnessed up till now. The explosion that was halfway across the galaxy packed so much power it briefly altered Earth's upper atmosphere. The event equaled the brightness of the full Moon's reflected visible light,

Channels: Extragalactic astronomy 

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04:24
04:24
04:24

Chandra Podcast: The Exotic World of Neutron Stars (HD)

Source: http://chandra.harvard.edu/resources/podcasts/hd The Exotic World of Neutron Stars: NASA: We have booster ignition and liftoff of Columbia, reaching new heights for women and X-ray Astronomy. Martin Elvis: The main thing Chandra does is take these superb, sharp images. Narrator: Ordinary matter, or the stuff we and everything around us is made of, consists largely of empty space. This is because matter is made of atoms, and an atom is a cloud of electrons orbiting around a nucleus composed of protons and neutrons. Suppose we could generate a force strong enough to crush all the emptiness out of a stone roughly the size of a football stadium. The stone would be squeezed down to the size of a grain of sand and would still weigh 4 million tons! Now imagine something that dense that is not the size of a sand grain, but rather the island of Manhattan. Thats a neutron star, one of the most exotic objects in the Universe. Slavko Bogdanov of the Harvard University explains how neutron stars are born. Scientist: Neutron stars are created when a massive star runs out of fuel and collapses. As the star collapses, the density becomes so immense that protons and electrons are squeezed tightly together to form neutrons. The end result is a star only 20 km across but weighing 1 1/2 times more than our sun and made up mostly of neutrons. These exotic objects possess enormous gravitational fields, about 100 billion times stronger than what we experience on Earth and have very strong magnetic fields. Narrator: Once a neutron star is formed, however, it does not mean that it just sits quietly in the cosmos. Rather, neutron stars have been found to do some incredible things that astronomers are still trying to understand. Scientist: Neutron stars are the most rapidly rotating stars we know about, with the fastest spinning at an incredible rate of over 700 times per second. For many neutron stars, the strong magnetic fields and fast rotation create a giant electric generator which forms a deadly beam of high-energy particles. As the neutron star rotates, the radiation from the particles appears to pulse, analogous to a rotating lighthouse beam. Such a neutron star is called a pulsar. The wind of fast-moving particles generated by a pulsar can also produce a large glowing cloud surrounding the star, called a pulsar wind nebula. Most of the radiation from pulsars is observed at X-ray energies so Chandra is a valuable tool in the study of these intriguing objects. Narrator: So while some neutron stars are these stellar whirling dervishes, others are intriguing in other ways. For example, there is a class of neutron stars called magnetars that have magnetic fields that are about a quadrillion times the Earths. (Thats a one followed by 15 zeroes for those keeping track.) Dr. Bogdanov explains what these intense magnetic fields can do to a star. Scientist: The immense magnetic field of a magnetar exerts enormous strain on the crust of the neutron star. On rare occasions, the strong magnetic forces can break apart the crust resulting in a powerful starquake, similar to how upheaval within the Earth causes earthquakes. Such starquakes are among the most violent events in the Universe, and release tremendous amounts of energy much of it in the form of X-ray radiation. By catching one of these outbursts in the act and following its behavior over time with X-ray telescopes such as Chandra, we can learn a great deal about the extreme conditions at the surface of these exotic stars. Narrator: Clearly, neutron stars are unlike anything we know about here on Earth. And because they are so extreme, they give scientists a chance to test their ideas about matter in a way that just cant happen in a laboratory. No matter what flavor the neutron star, each one is a chance to learn about the fundamental laws of physics that rule our Universe.

Channels: Extragalactic astronomy 

Added: 2615 days ago by Ordonomundi

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00:30
00:30
00:30

Light shed on black hole mystery.

The discovery of a rare magnetic star - or magnetar - is challenging theories about the origin of black holes. Magnetars are a special type of neutron star with a powerful magnetic field. They are formed by gravitational collapse after the original, or progenitor star, dies and forms a catastrophic supernova. For this newly discovered magnetar, astronomers calculated that the mass of the progenitor must have been at least 40 times greater than that of our Sun. Continue reading the main story " Start Quote The researchers' arguments are based on robust measurements, not just theory" Professor Mike Cruise University of Birmingham Collapsing stars of this size should form a black hole. The fact that this one resulted in a neutron star, challenges established theory. The study, led by Dr Ben Ritchie of the Open University, is published in the journal Astronomy and Astrophysics. The new magnetar was found in an extraordinary star cluster known as Westerlund 1, located 16,000 light years away in the southern constellation of Ara (the Altar). This region contains numerous massive stars. Dr Ritchie remarked that if the Earth was "located at the heart of this remarkable cluster, our night sky would be full of hundreds of stars as bright as the full Moon". Live fast, die young To calculate the mass of the progenitor star, the research team estimated its lifespan. Massive stars collapse earlier than small stars because the pressure on their core is greater, causing them to burn up their hydrogen fuel more rapidly. The missing black hole might be explained if the original star lost mass to a neighbouring star The astronomers assumed that this star formed at the same time as others in the same cluster. So the fact that this star had already collapsed shows that it must have been more massive than the other stars that still exist there. Stars that are more than 25 times more massive than our Sun normally collapse to form black holes. Dr Negueruela of the University of Alicante in Spain, a co-author on the study, said that the mystery of the missing black hole might be explained if the progenitor star got rid "of nine tenths of its mass before exploding as a supernova". One way of achieving this "diet plan" would be if the progenitor was part of cosmic double-act known as a "binary star", and its companion pulled off some of its mass, Dr Clark, another co-author, told the BBC. This would have allowed it to avoid the fate of becoming a black hole. Professor Mike Cruise, an astrophysicist at the UK's University of Birmingham, who was not involved in the study, told BBC News that the new research was "a brilliant piece of detective work". He commented: "What is especially attractive about this paper is the way the researchers' arguments are based on robust measurements, not just theory."

Channels: Extragalactic astronomy 

Added: 2615 days ago by Ordonomundi

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11:08
11:08
11:08

Most Dangerous Places (The Universe 1) part 47 of 60

The Universe (season 1) - History Channel. A look at the most dangerous objects known in space -- all consuming black holes, deadly gamma-ray bursts, powerful magnetars, and galactic collisions. The Universe (season 1) 2007 episodes: 1. Secrets of the Sun 2. Mars: The Red Planet 3. End of the Earth 4. Jupiter: The Giant Planet 5. The Moon 6. Spaceship Earth 7. Mercury & Venus: The Inner Planets 8. Saturn: Lord of the Rings 9. Alien Galaxies 10. Life & Death of a Star 11. The Outer Planets 12. Most Dangerous Places 13. Search for E.T. 14. Beyond the Big Bang

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Added: 2615 days ago by Ordonomundi

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11:02
11:02
11:02

Most Dangerous Places (The Universe 1) part 48 of 60

The Universe (season 1) - History Channel. A look at the most dangerous objects known in space -- all consuming black holes, deadly gamma-ray bursts, powerful magnetars, and galactic collisions. The Universe (season 1) 2007 episodes: 1. Secrets of the Sun 2. Mars: The Red Planet 3. End of the Earth 4. Jupiter: The Giant Planet 5. The Moon 6. Spaceship Earth 7. Mercury & Venus: The Inner Planets 8. Saturn: Lord of the Rings 9. Alien Galaxies 10. Life & Death of a Star 11. The Outer Planets 12. Most Dangerous Places 13. Search for E.T. 14. Beyond the Big Bang

Channels: Extragalactic astronomy 

Added: 2615 days ago by Ordonomundi

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01:42:30
01:42:30
01:42:30

'Tuning the Diamonds, Electromagnetism & Spiritual rEvolution' Susan Joy Rennison

~reupload from: http://youtube.com/Carlita75 ~sailing on a journey with author of "Tuning the Diamonds, Electromagnetism & Spiritual Evolution", Susan Joy Rennison is a geophysics researcher & expert on space weather & earth changes. Susan summarizes the material in her book & how it relates to current environmental changes; she has been researching changes in the earths energy field, astrophysics, unidentified aerial phenomena, solar cycles, magnetars, human & planetary energy fields, metaphysics, astrophysics, plasmoid behaviour, plasmic shields, plasma entities, mayan elders & the recent spirals appearing in the sky. Susan Joy Rennison has an honors degree in Physics and Geophysics from a British University, she is an independent researcher and author of "Tuning the Diamonds - Electromagnetism & Spiritual Evolution". She joins us to talk about her new essay called "The Greatest Transition in the History of Mankind - The Return to Paradise" and what she calls "The New Cosmic Age". What is happening in our universe? How are we being influenced by cosmic changes and space weather? Topics Discussed: Space Weather, the Ether, 1989, Mayan Elders, Cosmic Energies, Space Environment, Killer Electrons, Gamma-Ray Bursts, Energies from Deep Space, Magnatars, Upgrade of the Human, Space-Time Changes, Earthquakes, Shifting Into a Higher Energy Point, The Effect on Humans, Clash of two Magnetic Fields, Plasma Manifestation of the World Tree, HAARP, EISCAT, Missile Defense Shield, X-Men, Crop Circle, "Evolutionary Bomb", Metaphysics, Synesthesia, Near Death Experience, Intuition, Brain Rewired, Daniel Tammet, One out of Twenty Three, Raising The Kundalini Energy, Evolutionary Process, Norwegian Spiral, Plasma Phenomena, Plasma Mythology, Intelligence Supervising Everything in the Universe, Universal Intelligence, Jose Arguelles, Rainbow Bridge, 2012 and more. We'll go deeper into the areas of the plasma phenomena in our next hour with Susan. We talk about UFO's, "plasma entities" as another form of life that now is increasing in numbers on the planet , according to Susan. Are our ancestors returning? We talk about organic dust, earth lights, fire balls and the incredible number of sightings that are happening around the world. It's something else then nuts and bolts space ships, these are balls of light, ball lightning, orbs being seen. We tie in the crop template or crop circle communication aspect into this as well. Is there an interaction going on with this phenomena? We ask Susan how strange things will get in the future as an increase of cosmic rays and cosmic radiation seems to be the case. Planes have already been affected by cosmic radiation, how bad could it get? This is a very intriguing second hour that you shouldn't miss if you're curious to hear more about the phenomena and what Susan believes is going on and how this could pan out in the years to come. http://SusanRennison.com & http://JoyFirePublishing.com ~Project infopowerment Truthers Alliance~ Creating New kind of Unity against Tyranny ~ http://infopowerment.whynotnews.eu no need2follow anyone, only consider broaden (y)our horizon of possibilities http://infopowerment.whynotnews.eu http://empowering.whynotnews.eu http://freemantv.whynotnews.eu http://freegary.whynotnews.eu http://sentientmind.whynotnews.eu http://exomatrixtv.whynotnews.eu http://need2know.whynotnews.eu http://911matrix.whynotnews.eu http://davidicke.whynotnews.eu http://seattle4truth.whynotnews.eu http://believersunderground.whynotnews.eu http://nightvisionufofeeds.whynotnews.eu http://alexjones.whynotnews.eu http://untoldmysteries.whynotnews.eu http://2012.whynotnews.eu http://exopolitics.whynotnews.eu http://youtube.com/911TruthAnniversary http://youtube.com/2012WhyNotNews http://youtube.com/Agony4Truth http://youtube.com/AlexJonesFeeds http://youtube.com/AntiNWOMafiaTools http://youtube.com/Celebs4Truth http://youtube.com/ChemTruthers http://youtube.com/CropCircleMatrix http://youtube.com/DavidIckeNews http://youtube.com/ExoBlogo http://youtube.com/ExoLogan http://youtube.com/EX0MATRlXTV http://youtube.com/eXoPolitics2012 http://youtube.com/ExoTubes http://youtube.com/ExoVlogo http://youtube.com/ExoWake http://youtube.com/infopowerment http://youtube.com/JohnKuhles http://youtube.com/Musicians4Truth http://youtube.com/NwoFoodWars http://youtube.com/NwoSatire http://youtube.com/Poems4Truth http://youtube.com/Quest4Wisdom http://youtube.com/Rappers4Truth http://youtube.com/RonPaul2012Revolt http://youtube.com/RussianParadigm http://youtube.com/SolutionRevolutionS http://youtube.com/SuppressedArcheology http://youtube.com/SuppressedCures http://youtube.com/TransDehumanism http://youtube.com/TrutherCouncelor http://youtube.com/UfoDisclosure2012 http://youtube.com/Women4Truth

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Added: 2615 days ago by Ordonomundi

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14:24
14:24
14:24

Totemtag - High Energy

This video, the third of a series of astronomy clips, might be considered Part II of my previous "Invisible Colors", and is also strictly related to my previous "Interstellar". It describes the Universe as it is shown by the most recent X-ray and Gamma-ray space telescopes such as Chandra and Fermi respectively. X-ray and Gamma-ray electromagnetic emission -- which corresponds to the highest frequency and energy -- from celestial bodies is a testimony of very violent processes where extremely high temperatures are liberated. This means a minimum value of T = 1 million °K (soft X rays) up to a maximum value of T = 1 billion °K (hard gamma rays), more or less. The minimum is about a factor 200 higher than solar photosphere's temperature. Such processes are present in a quite widely varied astrophysical zoology that ranges from galactic to extragalactic objects, in particular: the corona of the Sun and of other stars, flare stars, x-ray close binary stars, interstellar shock fronts, supernova remnants, hypernovas, gamma-ray bursts, pulsars, magnetars, active galactic nuclei and jets, quasars, galactic clusters and the intergalactic medium. More or less this video shows some of these objects in time sequence. Of course colors that are not coming from the optical range are always false colors: mostly blue and violet (and sometimes gold), but sometimes other colors too are used. Most of the images shown are composite images, namely a sum of optical, infrared (also in false color), and X-ray. Some images show only the X-ray emission (usually in blue). Gamma-ray mapping of our galaxy shows mostly Gamma-rays. All the most important and updated information of pertinence can be found here: Chandra X-ray Observatory: http://chandra.harvard.edu/ Fermi Gamma-ray Space Telescope: http://fermi.gsfc.nasa.gov/ The music is a long and hypnotic sequencer riff, which is intended to evoke the highly dynamic character and violence of high-energy processes in astrophysics.

Channels: Extragalactic astronomy 

Added: 2615 days ago by Ordonomundi

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02:21
02:21
02:21

2001 space lizard

this song (which i wrote 12 moon seconds ago) was inspired by my alien abduction by the lizard man, whom some of you know as neil armstrong, the radiation from the sun stunted my guitar capabilities as i normally play like ynwie malmsteen, actually what is making my singing and guitar playing sound shitty is the camera lag distortion from here to earth, the song is not finished, so if you want more get me neil armstrong's phone number. This is all true by the way

Channels: Extragalactic astronomy 

Added: 2615 days ago by Ordonomundi

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