Space
That one-way ticket to Mars you were hoping for may not be such a good idea
The Mars One mission was once a media darling, but a critical MIT report has triggered a backlash against the project that even includes one of its own potential astronauts.
Seeing a total solar eclipse is 'like standing on another planet and looking at an alien sky'
NASA’s Dawn spacecraft is already historic, and it’s just getting started
Life beyond Earth? The best bet may be on moons, not planets
A trip to Mars is a lifetime dream — and excellent reality TV
The FAA is ready to protect — and regulate — your space business
We are still years away from there being meaningful businesses on the moon — if even that soon — but the US government doesn't want to be caught off guard. So officials at the FAA are preparing regulations for
Look hard and you can see Comet Lovejoy lighting up the night sky
The last time Comet Lovejoy was visible in the night sky was 8,000 years ago. Now it's back and visible from the Northern Hemisphere in the coming weeks, and binoculars or a telescope can give you a glowing view of the visitor.
After a long, cold journey, NASA's New Horizons probe has Pluto in its sights
Talk about a long, strange trip. A NASA spacecraft called New Horizons has traveled 3 billion miles through space over the last nine years and now is approaching Pluto. Aboard: Ashes of the astronomer who discovered the distant orb in 1930.
The Curiosity rover uncovers evidence that Mars once had a massive lake
The Curiosity rover is currently roaming a 96-mile crater on the surface Mars, and the evidence it has collected suggests that the crater was once home to a huge lake. And NASA scientists say this information is unlike any they've seen before.
One small step from Earth, one giant leap to Mars?
NASA says the first launch of the Orion spacecraft on Friday is “the dawn of the new era of space exploration" that will finally kick off the attempt to put humans on Mars.
Cosmonaut Yuri Gagarin's legacy
Tuesday marked the 50th anniversary of when Soviet cosmonaut Yuri Gagarin became the first human being to orbit the earth. The World's Clark Boyd looks back on Gagarin's legacy, in Russia and beyond.