The Astronomers

Space Odyssey: Voyage To The Planets 1 - BBC

Space Odyssey: Voyage To The Planets This two-part science fiction docu-drama examines the possibilities of a dangerous, manned space mission to explore the inner and outer planets of the Solar system. Five astronauts pilot the nuclear thermal rocket powered Pegasus spacecraft on a tour of the solar system. Their mission is a collaboration of the NASA, CSA, ESA and РКА space agencies and takes the crew to Venus, Mars, a close flyby of the Sun, Jupiter's moon Io and Europa, Saturn, Pluto, and the fictional Comet Yano-Moore. Most of the planetary destinations the crew reaches are followed by a manned landing there. Prior to the mission large tanks of hydrogen were deposited in stable orbits around the planets to allow the crew to refuel to have sufficient delta-v for the multi-year mission. The crew encounter many hardships and disappointments along the way. A Venus EVA that almost ends in disaster when the lander Orpheus encounters launch delays, the near-loss of the shield during the aerobrake in Jupiter's upper atmosphere (according to the first part of the miniseries) and the loss of samples from Jupiter's moon Io all test the crew's resolve. The most devastating blow comes when the ship's medical officer dies of solar radiation-induced lymphoma in Saturn orbit, forcing the crew to decide whether to continue the mission to Pluto, or abort and return to Earth. In the original British release, the crew decides to press on to Pluto, making history.

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Planetary Science: Exploring The Solar System

Science & Reason on Facebook: http://tinyurl.com/ScienceReason Science@ESA (Episode 7): Planetary science - Exploring our backyard, the Solar System (Part 2) In this seventh episode of the Science@ESA vodcast series Rebecca Barnes continues to journey through the wonders of modern astronomy bringing us closer to home as we begin to explore the Solar System. We'll discover the scale and structure of the Solar System, find out why we explore it and introduce the missions launched on a quest to further investigate our local celestial neighbourhood. --- 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 --- Planetary science is the scientific study of planets (including Earth), moons, and planetary systems, in particular those of the Solar System and the processes that form them. It studies objects ranging in size from micrometeoroids to gas giants, aiming to determine their composition, dynamics, formation, interrelations and history. It is a strongly interdisciplinary field, originally growing from astronomy and earth science, but which now incorporates many disciplines, including planetary astronomy, planetary geology (together with geochemistry and geophysics), physical geography (geomorphology and cartography as applied to planets), atmospheric science, theoretical planetary science, and the study of extrasolar planets. Allied disciplines include space physics, when concerned with the effects of the Sun on the bodies of the Solar System, and astrobiology. There are interrelated observational and theoretical branches of planetary science. Observational research can involve a combination of space exploration, predominantly with robotic spacecraft missions using remote sensing, and comparative, experimental work in Earth-based laboratories. The theoretical component involves considerable computer simulation and mathematical modelling. Planetary scientists are generally located in the astronomy and physics or earth sciences departments of universities or research centres, though there are several purely planetary science institutes worldwide. There are several major conferences each year, and a wide range of peer-reviewed journals. • http://en.wikipedia.org/wiki/Planetary_science --- The Solar System is made up of the Sun and all of the smaller objects that move around it. Apart from the Sun, the largest members of the Solar System are the eight major planets. Nearest the Sun are four fairly small, rocky planets - Mercury, Venus, Earth and Mars. Beyond Mars is the asteroid belt - a region populated by millions of rocky objects. These are left-overs from the formation of the planets, 4.5 billion years ago. On the far side of the asteroid belt are the four gas giants - Jupiter, Saturn, Uranus and Neptune. These planets are much bigger than Earth, but very lightweight for their size. They are mostly made of hydrogen and helium. Until recently, the furthest known planet was an icy world called Pluto. However, Pluto is dwarfed by Earth's Moon and many astronomers think it is too small to be called a true planet. An object named Eris, which is at least as big as Pluto, was discovered very far from the Sun in 2005. More than 1,000 icy worlds such as Eris have been discovered beyond Pluto in recent years. These are called Kuiper Belt Objects. In 2006, the International Astronomical Union decided that Pluto and Eris must be classed as "dwarf planets". Even further out are the comets of the Oort Cloud. These are so far away that they are invisible in even the largest telescopes. Every so often one of these comets is disturbed and heads towards the Sun. It then becomes visible in the night sky. • http://sci.esa.int/science-e/www/area/index.cfm?fareaid=7 .

planetary  science  exploring  solar  system  esa  missions  planets  earth  moons  meteoroids  astronomy  space  exploration  telescopes  satellites  spacecrafts  sun  mercury  venus  mars  asteroids  belt  jupiter  saturn  uranus  neptune  pluto  eris  oort  cloud 

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PREVIEW: Alien Planets & Eyeball Earths

Music by Zero Project. The hunt for planets beyond our solar system has reached a fever pitch. With some 500 planets revealed by ground telescopes, now, the ultimate planet finder, the Kepler space telescope, has released a tsunami of data. Among over a thousand new planet prospects are 200 multi-planet solar systems and 58 worlds in life-friendly orbits. They're all within a narrow window on the sky the size of your hand. That's why this may be the tip of the iceberg in a galaxy that's literally crawling with planets. Scientists are now beginning to envision what these worlds are like, with atmospheres, oceans, geological history. In the process, they are redefining what a planet might need to spawn life.

alien  planets  earth  kepler  gliese  581  planethunting  nasa  space  universe  solar  systems  stars  milky  way  orion  esa  eso  telescope  astronomy  hubble  spitzer  shuttle  orbit  ufo  moon  speed  of  light  hawking  einstein  black  holes  mercury  venus  jupiter  saturn  neptune  pluto  kuiper  belt  uranus  mass  supernova  planetary  science  environment  widescreen  airplanes  aliens  photography  scifi 

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Added: 50 days ago by deek

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Big New ExoPlanet Haul

From EsoCast in 1080p, comes the announcement of a rash of new planet discoveries. Astronomers using ESO's leading exoplanet hunter HARPS have today announced more than fifty newly discovered planets around other stars. Among these are many rocky planets not much heavier than the Earth. One of them in particular orbits within the habitable zone around its star. Among the new planets just announced by scientists, sixteen are super-Earths - rocky planets up to ten times as massive as Earth. This is the largest number of such planets ever announced at one time. A planet in orbit causes its star to regularly move backwards and forwards as seen from Earth. This creates a tiny shift of the star's spectrum that can be measured with an extremely sensitive spectrograph such as HARPS. In their quest to find a rocky planet that could harbor life, astronomers are now pushing HARPS even further. They have selected ten well-studied nearby stars similar to our Sun. Earlier observations showed that these were ideal stars to examine for even less massive planets. After two years of work, the team has found five light super-Earths around three of the stars. These planets are very good candidates for future observations looking for evidence of life. One of the newly found planets, named HD 85512 b, orbits inside the habitable zone. This is the narrow area around a star where water can exist in liquid form. Astronomers estimate that liquid water could possibly be present on this planet if it is a rocky world that has more than 50% cloud cover. By looking carefully at the results from the first 8 years of HARPS observations, the team has found that around 40% of stars similar to the Sun harbor at least one planet lighter than Saturn. These new results lead astronomers to believe that they could soon find more super-Earths in the habitable zones of their stars with HARPS. These planets will be great targets for powerful future telescopes to try to study their atmospheres looking for evidence of life. Thanks to HARPS, the search for another Earth elsewhere in the galaxy is picking up pace!

exoplanets  planets  solar  system  esocast  eso  cast  esa  hubble  europe  astronomy  telescopes  telescope  space  universe  aliens  extraterrestrial  earth  super-earth  alien  life  extra-solar  exo  mars  saturn  jupiter  venus  moon  shuttle  ufo 

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Added: 85 days ago by deek

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Hubble Space Telescope - Chapter 1

Part 1 in a series of videos produced by the ESA for public distribution about the Hubble Space Telescope and much more. This video is Copyright Free material with some restrictions. Find out more at: http://www.spacetelescope.org

Hubble  Space  Telescope  Galaxy  Universe  Webb  VLT  Mars  Moon  Nebula  Jupiter  Saturn 

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Added: 931 days ago by deek

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Hubble Space Telescope - Chapter 2

Part 2 in a series of videos produced by the ESA for public distribution about the Hubble Space Telescope and much more. This video is Copyright Free material with some restrictions. Find out more at: http://www.spacetelescope.org

Hubble  Space  Telescope  Webb  VLT  Galaxy  Universe  Explore  Mars  Moon  Jupiter  Saturn 

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Added: 931 days ago by deek

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Planets and stars size in scale

Planets and stars size in scale, Uranus isn't shown but it's barely bigger than Neptune. It shows: Mercury Mars Venus Earth Neptune Saturn Jupiter Sun Sirius Pollux Arcturus Rigel Betelgeuse Antares MY Cephei W Cephei

planets  stars  mercury  venus  earth  mars  jupiter  saturn  uranus  neptune  pluto  size  scale  sun  sirius  Betelgeuse  cephei 

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Added: 932 days ago by hostonnet

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NASA I - A Stroll Through the Solar System

Thanks to modern technology, today's youngsters grow up knowing more about our sun, planets, and solar system than all the famous philosopher/scientists in history -- Archimedes, Aristotle, Democritus, Copernicus, Galileo, Sir Isaac Newton. NASA allows us to take a close look at some of our most fascinating neighbors, from the sun to the nine known planets, and beyond to star clusters, nebulae, and galaxies. ... nasa sun planets venus mercury earth mars saturn jupiter star galaxy nebula ...

Education  nasa  sun  planets  venus  mercury  earth  mars  saturn  jupiter  star  galaxy  nebula  universe  astronomy 

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Added: 939 days ago by adminn

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