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Moonmosaic_carboni_f.jpg (1600×1200) Celestia: Home. Welcome to Celestia ...

Celestia: Home

The free space simulation that lets you explore our universe in three dimensions. Celestia runs on Windows, Linux, and Mac OS X. Unlike most planetarium software, Celestia doesn't confine you to the surface of the Earth. You can travel throughout the solar system, to any of over 100,000 stars, or even beyond the galaxy. All movement in Celestia is seamless; the exponential zoom feature lets you explore space across a huge range of scales, from galaxy clusters down to spacecraft only a few meters across. FullmoonL. The-Observable-Universe.jpg (3850×1925) Lh6.googleusercontent.com/-Kde1FiWiijM/TniZsFpCyqI/AAAAAAAAD7Q/2sZC2Zqx8RM/s500/Contact500_Micael_Reynaud.gif. Two Suns? Twin Stars Could Be Visible From Earth By 2012.

By Dean Praetorius | HuffingtonPost.com Earth could be getting a second sun, at least temporarily.

Two Suns? Twin Stars Could Be Visible From Earth By 2012

Dr. Brad Carter, Senior Lecturer of Physics at the University of Southern Queensland, outlined the scenario to news.com.au. Betelgeuse, one of the night sky’s brightest stars, is losing mass, indicating it is collapsing. It could run out of fuel and go super-nova at any time. When that happens, for at least a few weeks, we’d see a second sun, Carter says. The Star Wars-esque scenario could happen by 2012, Carter says... or it could take longer. But doomsday sayers should be careful about speculation on this one. In fact, a neutrino shower could be beneficial to Earth. UPDATE: To clarify, the news.com.au article does not say a neutrino shower could be beneficial to Earth, but implies a supernova could be beneficial, stating, "Far from being a sign of the apocalypse, according to Dr Carter the supernova will provide Earth with elements necessary for survival and continuity.

" Top Image: Source. Astronomers discover two planets orbiting a two-star system : University of Hawaiʻi System News. Artist's rendition of the Kepler-47 system.

Astronomers discover two planets orbiting a two-star system : University of Hawaiʻi System News

Credit: NASA/JPL-Caltech/T. Pyle A team of astronomers, including University of Hawaiʻi at Mānoa Associate Astronomer Nader Haghighipour, has discovered the first two-planet system orbiting two stars. Earth from the ISS, photos by Astronaut Ron Garan [35 pics. Earth from the ISS: Megalopolis Atlantic Seaboard ‘Megalopolis’ at Night (NASA, International Space Station, 04/06/11) A night time view of the Atlantic Seaboard Conurbation, United States of America, is featured in this image photographed by an Expedition 27 crew member on the International Space Station. As regional metropolitan areas expand in both physical area and population, they typically aggregate to form economically, politically, and to some extent socially linked entities known as conurbations — the term “megalopolis” has also been used.

Spectacular Photos from the ISS by cosmonaut Fyodor Yurchikhin [50 pics. Spectacular photos by Cosmonaut Yurchikhin: Triggerpit staff: “Purple sea around a what looks like an atoll.

Spectacular Photos from the ISS by cosmonaut Fyodor Yurchikhin [50 pics

The image is very powerful and we would very much like to know where this is so we can plan our next vacation trip.”From Laura in Comments below: “Nikumaroro or Gardener Island of the Phoenix Islands, Kiribati – identified with Google Image search for similar images” Photo Credit: Cosmonaut Fyodor Yurchikhin and the Russian Space Agency Press Services Presenting the Russian cosmonaut Fyodor Yurchikhin, and his fantastic photographs from the International Space Station.

Cosmonauts are the Russian equivalent to Astronauts and this Russian Hero has been in space not once or twice but three times. In 2002 he flew on the Shuttle STS-112, and he later, twice went on the ISS in 2007 and finally in 2010. How-white-holes-work.gif (1200×791) Scientists discover one of the biggest structures in the Universe. By Seth Borenstein | Associated Press Scientists have found a cosmic supermom.

Scientists discover one of the biggest structures in the Universe

It’s a galaxy that gives births to more stars in a day than ours does in a year. Astronomers used NASA’s Chandra X-Ray telescope to spot this distant gigantic galaxy creating about 740 new stars a year. By comparison, our Milky Way galaxy spawns just about one new star each year. The galaxy is about 5.7 billion light years away in the center of a recently discovered cluster of galaxies that give off the brightest X-ray glow astronomers have seen. But this is the size, type and age of galaxy that shouldn’t be producing stars at such a rapid pace, said the authors of a study published Wednesday in the journal Nature. "It’s very extreme," said Harvard University astronomer Ryan Foley, co-author of the study. The unnamed galaxy — officially known by a string of letters and numbers — is about 3 trillion times the size of our sun, said study lead author Michael McDonald of the Massachusetts Institute of Technology.

50_Years_Space_Exploration1.jpg (3861×1706) Photopic Sky Survey. Hires.jpg (4000×3127) Dd.dynamicdiagrams.com/wp-content/uploads/2011/01/orrery_2006.swf. Www.solarsystemscope.com/scope.swf.

Chromoscope - View the Universe in different wavelengths. Space Shuttle Discovery - 360VR Images. The Scale of the Universe 2.