Methane is such a promising sign for the existence of biological life that it's hard not to get excited when it's detected on Mars. But Amy Shira-Teitel runs down some other ways the gas could be observed on the Red Planet without their being life.
Olaf, the goofy snowman from Disney's hit film Frozen, is floating aboard the International Space Station.
Human waste has been a hassle for spaceflight since the dawn of the space age -- but now it could transform our push toward the final frontier. Continue reading →
NASA's new Orion spaceship nailed its orbital debut flight, splashing down in the Pacific Ocean after a 4.5-hour journey.
Follow the historic test flight of NASA Orion spacecraft in these photos.
A robot that can scale the faces of steep cliffs might one day help explore Mars and find signs of life.
Like most Americans back on the ground, astronauts aboard the International Space Station will celebrate Thanksgiving with a feast: NASA food scientists have created zero-g versions of classic Thanksgiving dishes for this week's celebration.
With a few brief exceptions, NASA's New Horizons probe has been asleep since 2006 while it zooms toward Pluto. But it's almost time for the craft to wake up and dial in on the former planet. Amy tells us what the plucky probe will be studying.
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