Astronomers have discovered an Earth-mass planet circling Alpha Centauri B, a star only four light-years from our own solar system.
The retired Space Shuttle Endeavour cruised the streets of Los Angeles on the way to its new home at the California Science Center. Endeavour was the last vehicle launched into orbit as part of thirty-year U.S. Space Shuttle program.
Time-lapse video: Space shuttle Endeavour’s trek across L.A.
A comet with the unwieldy name C/2012 S1 (ISON) is likely to pass close enough to Earth in the winter of 2013 that it will appear brighter than the moon.
“Once in a Civilization” Comet to Zip past Earth Next Year
Why is the moon made mostly from the same material as the Earth and not the giant object that struck the Earth 4.5 billion years ago? Two new papers in the journal Science seek an answer to the lunar mystery.
Eight million people tuned in to watch Felix Baumgartner's record-breaking "space" jump on October 14th. The only problem-- it wasn't really from space.
Why Red Bull’s Stratos Jump Was Just a Publicity Stunt—and Only Partially Successful