Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in /home/theastro/public_html/include/vshare.php on line 7
The AstronomersApollo
Videos with tag Apollo
Results 1-3 of 3
 
06:42
06:42
06:42

Hubble's Successor: The James Webb Space Telescope

http://www.facebook.com/ScienceReason ... Science@ESA (Episode 4): Following The Redshift (Part 2) - Hubble's Successor: The James Webb Space Telescope. In this fourth episode of the Science@ESA vodcast series Rebecca Barnes will identify some of the key discoveries achieved with the famous Hubble Space Telescope, look at the concept of redshift, and meet a new telescope that will be used to uncover the early Universe. --- Please SUBSCRIBE to Science & Reason: • http://www.youtube.com/Best0fScience • http://www.youtube.com/ScienceTV • http://www.youtube.com/FFreeThinker --- Named in 2002 in honour of NASA's administrator during the Apollo programme, the James Webb Space Telescope (JWST) mission is a collaborative project between the National Aeronautics and Space Administration, the European Space Agency and the Canadian Space Agency. JWST will address many of the outstanding issues of modern astronomy related to the 'Early Universe' and is expected to yield scientific breakthroughs as did its predecessor, the Hubble Space Telescope. JWST will be a general-purpose observatory with a suite of astronomical infrared-sensitive instruments. Compared to existing or planned observatories, JWST will have the unique advantage of combining superb image quality throughout a wide wavelength range, a wide field of view and unparalleled photon sensitivity due to its 6.5-metre diameter telescope primary mirror. http://sci.esa.int/science-e/www/area/index.cfm?fareaid=29 --- The James Webb Space Telescope (JWST) is a planned infrared space observatory, the partial successor to the aging Hubble Space Telescope. The JWST will not be a complete successor, because it will not be sensitive to all of the light wavelengths that Hubble can see. The main scientific goal is to observe the most distant objects in the universe, those beyond the reach of either ground based instruments or the Hubble. The JWST project is a NASA-led international collaboration with contributors in fifteen nations, the European Space Agency (ESA) and the Canadian Space Agency (CSA). Originally called the Next Generation Space Telescope (NGST), it was renamed in 2002 after NASA's second administrator, James E. Webb (1906-1992). Webb had headed NASA from the beginning of the Kennedy administration through the Johnson administration (1961-68), thus overseeing all the manned launches in the Mercury through Gemini programs, until just before the first manned Apollo flight. Current plans call for the telescope to be launched on an Ariane 5 rocket in June 2014, on a five-year mission (10 year goal). The JWST will reside in solar orbit near the Sun-Earth L2 point, which is on a line passing from the Sun to the Earth, but about 1.5 million km farther away from the Sun than is the Earth. This position, which moves around the Sun in exact orbital synchrony with the Earth, will allow JWST to shield itself from infrared from both Sun and Earth, by using a single radiation shield positioned between the telescope and the Sun-Earth direction. http://en.wikipedia.org/wiki/James_Webb_Space_Telescope .

Channels: Observational astronomy 

Added: 1880 days ago by Ordonomundi

Views: 776 | Comments: 0

Not yet rated

 
14:47
14:47
14:47

Wandering Stars: a tour of the planets

A beauteous rip through the solar sytem, based on NASA's Science on a Sphere program "The Wanderers." In ancient times, humans watched the skies looking for clues to their future and to aid in their very survival. They soon observed that some stars were not fixed, but moved in the sky from night to night. They called these stars the wanderers. At the center of our solar system is the sun, binding the planets with its gravitational pull. From our viewpoint on earth, the sun appears small in the sky, but in reality it dwarfs even Jupiter, the largest planet in the solar system. The distance from the sun to the small worlds traveling it are vast. Light takes eight minutes to reach earth, and nearly a day to reach the farthest known bodies. Join us now as we tour our solar system, starting with sun-baked mercury and traveling to the remotest outskirts, where small, icy bodies move with only the faintest connection to our sun. Mercury Mercury, the closest planet to Sun is also the smallest terrestrial planet. It orbits so swiftly that its year lasts only 88 Earth days. The airless cratered surface could almost be mistaken for our moon, relentlessly bombarded by meteoroids for four and a half billion years. One of these encounters left a giant scar called the golarus basin, one of the largest impact sights in the solar system. Temperatures on the surface of mercury can reach a blistering 800 degrees Fahrenheit, and can dip to 300 degrees below zero on the night side. Venus Venus, as seen from Earth, is the brightest object in sky after the Sun and Moon. Russian probes were the first to land on Venus in the 1970's and 1980's. Venus's surface is volcanic. Its atmosphere is composed of thick, dense carbon dioxide with sulfuric acid clouds. Both are potent greenhouse gases that trap incoming sunlight. Venus rotates slowly—one Venusian day lasts almost four Earth months. Earth Earth is the only planet with life as we know it. The atmosphere and temperatures are "just right" for life. It is the only known body in our solar system where water can exist as a gas, liquid, and solid. Vast oceans dominate surface of the planet. Seasonal changes occur on the surface. Earth has a solid surface that constantly shifts due to plate tectonics. Mars Once geologically active, Mars has the largest dormant volcano in the solar system, Olympus Mons. It also hast the longest valley in the solar system, called Valles Marineris. Mars has a thin, atmosphere primarily composed of carbon dioxide. Surface conditions are dynamic. Mars has seasons as well as massive dust storms that cover the planet. Its surface features include the smooth, low-lying northern hemisphere and the craggy, heavily-cratered southern uplands. Evidence suggests that Mars had water running on its surface at some time in the past. Asteroid belt The asteroid belt is composed of small rocky pieces. The big question is "What happened here?" and "Why no planets?" The asteroid Ceres is large enough to be classified as a dwarf planet. Jupiter Jupiter is the largest and most massive planet in the Solar System. It rotates rapidly, completing one rotation every 10 hours. Long-lasting, high-speed winds and storms dominate Jupiter's atmosphere. Jupiter has a faint planetary ring system and over 63 moons. The largest moons, discovered by Galileo in 1610, vary widely. Io is volcanically active. Europa's cracked surface likely hides an ocean below. Ganymede is the largest moon in the Solar System. Callisto is heavily cratered. Saturn Saturn's seemingly serene atmosphere hides powerful storms and winds on its surface. Saturn is known for its extensive ring system made of chunks of ice, rock, and dust with small moonlets embedded within the rings. Saturn has more than 60 moons. Conditions vary among the moons. Titan, the largest moon, has a thick, smoggy, atmosphere covering its icy surface with lakes of liquid methane or ethane. Small Enceladus has water and ice geysers at its south pole. Its water vapor coat other nearby moons and create a thin Saturn ring. Uranus Uranus receives 400 times less sunlight than Earth. Uranus lies nearly sideways, making its axis nearly parallel to the plane of the Solar System. This extreme tilt give rise to seasons that last nearly 28 Earth years. Uranus as many moons and a faint ring system. It has only been visited by one spacecraft, Voyager 2, in 1986. Like the other giant planets, Uranus's atmosphere is primarily hydrogen and helium with a trace of methane gas over deep clouds, giving it a pale blue-green tint. Neptune Neptune also has many moons and a faint ring system. Its Great Dark Spot, a large storm with extremely strong winds, disappeared in the 1990s. Neptune's vivid blue color is due to its frigid temperature: -371°F (-224 °C).

Channels: Planetary science 

Added: 1937 days ago by deek

Views: 741 | Comments: 0

Not yet rated

 
01:03:48
01:03:48
01:03:48

Thunderbolts the Electric Universe and Plasma Physics

Thunderbolt the Tutorial is about the electrical model of the universe. In the universe plasma makes up 99.99% of everything we can see. Our current model has big flaws that has forced scientist to dream up things that don't exist in order to explain things that we see out there in space. Yet the electrical model can explain most of these things. So why don't we hear about this model? It's not mentioned on TV shows like The Universe or How The Earth Was Made, Discovery Channel, or even PBS, never talk about it, WHY? Electricity, that's why! If the universe has electrical currents flowing thru it, and it does, then it's just a matter of time before we would learn how to harness that energy. You would have to buy a devise that would output the power, but after that it would be free. Imagine being able to drive anywhere you wanted to without having to stop and fill up your tank every 200 or 300 miles. Imagine your home when it's 110 degrees outside, but inside a nice 75 degrees with no electric bill to eat up all your hard earned money. Could it be true? I believe it could, and this would defiantly be a reason for the energy companies to not want this known. _____________________________________________________ Related videos: The truth about dark energy, it's really zero point energy. http://www.youtube.com/watch?v=EqaLSulA_3I A short 10 min video about the electrical universe and plasma physics. http://www.youtube.com/watch?v=gPiGWIf3FjA Dr. Chuck Missler on The Electric Universe 1hr 43min lecture. http://www.youtube.com/watch?v=mxLn06k2ATo Wallace Thornhill on the misconceptions of the electrical universe 13 min. http://www.youtube.com/watch?v=aa9tsMztZPY Universe - The Cosmology Quest Pt 1 http://www.youtube.com/watch?v=L6EGpg_BVBg&feature=channel_video_title Universe - The Cosmology Quest Pt 2 http://www.youtube.com/watch?v=t7uT0JuKT8Q&feature=relmfu ______________________________________ For more informative videos like this one: http://youtube.com/davnxs http://youtube.com/thetruthalwaysaddsup _____________________________________ Now you can add my Playlist to your Channel. Just follow the 6 easy steps below. 1. Click on the link below and find a Playlist you would like to add to your Channel. All the Playlist shown from the link below are either directly one of my Playlist, or someone's that have already saved one of my Playlist to their Channel, or a Playlist they have made themselves that contain a link to a video from my Channel. http://www.youtube.com/results?search_query=davnxs%2C+playlist&page=1 2. Once you have found a playlist that you would like to add to your channel, click on the title link of that playlist. You will be taken to the 1st video in that playlist, and a playlist bar will be displayed at the bottom of your browser. 3. On the right hand side of playlist bar, click on the options button and then the Save as a new Playlist button. 4. Enter a Playlist title and a description, and then click on the save button. The Play list is now your Playlist. 5. To display the Playlist on your channel go to your channels home page and click on the Videos and Playlist button. 6. Click on the box for the Playlist that you just created and then the Save Changes button. That's it! The Playlist is now a Playlist on your channel.

Channels: Major questions in astronomy 

Added: 1978 days ago by deek

Views: 8527 | Comments: 0

Not yet rated