Giant Alien Planet Has 4 Suns in Its Sky
artist’s concept of the four-star system
March 27th, 2015
Astronomers have spotted a fourth star in a planetary system called 30 Ari, bringing the number of such known quadruple-sun systems to two. Numerous two- and three-star planets have been identified.
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One-Year Crew Begins Epic Trip on International Space Station
NASA astronaut Scott Kelly (bottom left) and Russian cosmonauts Gennady Padalka (bottom center)  and Mikhail Kornienko (bottom right) are seen on the International Space Station after arriving at the outpost on March 27, 2015. Kelly and Kornienko are begi
March 27th, 2015
Three new crewmembers just arrived at the International Space Station, and two of them won't be leaving for about one year.
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Star Power: Spring's Night Sky Dazzles with Constellations Aplenty
Big Dipper Seen in the Canary Islands
March 27th, 2015
With spring underway, the evening sky is in transition. What new stars and constellations will adorn the night sky for the next few months?
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Liftoff! US, Russia Launch Historic One-Year Space Mission
One-Year Mission Crew Launch
March 27th, 2015
An American astronaut and Russian cosmonaut launched into space Friday to attempt something their two countries have never done together before: a one-year mission on the International Space Station that could help one day send humans to Mars.
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The Yearlong Space Station Mission: Full Coverage
One-Year Mission Portrait
March 27th, 2015
NASA astronaut Scott Kelly and Russian cosmonaut Mikhail Kornienko are scheduled to begin their unprecedented one-year mission to the International Space Station on Friday (March 27).
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Space Webcasts: One-Year Space Crew Enters Space Station
The Soyuz spacecraft carrying NASA astronaut Scott Kelly and Russian cosmonauts Mikhail Kornienko and Gennady Padalka is seen by a camera on the International Space Station during docking operations on March 27, 2015. Kelly and Kornienko are beginning a n
March 27th, 2015
Watch live Friday (March 27) as a crew of three launches to the International Space Station. Two of the crewmembers will spend one year on the orbiting outpost.
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Did 'Iron Rain' Bypass the Moon to Fall Mostly on Earth?
Artist's conception of moon-forming collision
March 27th, 2015
New experiments show that the asteroids that slammed into Earth and the moon more than 4 billion years ago were vaporised into a mist of iron but stayed gravitationally stuck on more massive Earth.
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Kelly Astronaut Twins Meet on Eve of 1-Year Mission Launch (Photo)
Scott Kelly, left, and his identical twin brother Mark pose for a photo at the Cosmonaut Hotel in Baikonur, Kazakhstan on on March 26, 2015, one day before Scott was scheduled to launch on a one-year mission to the International Space Station.
March 27th, 2015
NASA's Kelly astronaut twins met up for a photo Thursday (March 26), just a day before one of them was scheduled to launch toward the International Space Station on an epic and unprecedented yearlong mission.
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