Astronomy

The spacecraft is "showing us new wonders and demonstrating where our curiosity can take us if we dare," NASA's planetary science director says.

Don't worry: Astronomers say asteroid 2014 JO25, which is more than a third of a mile wide, will fly harmlessly past our planet. Still, it should come close enough to be visible with small telescopes.

"This is the closest we've come, so far, to identifying a place with some of the ingredients needed for a habitable environment," NASA says. There are signs of a promising reaction under the surface.

The night sky is fascinating any time of year, but spring holds a few special surprises for stargazers. Gas giants like Jupiter and Neptune will be…

Today at 11am. NASA recently discovered seven Earth-like exoplanets orbiting a star 40 light years away from Earth. Any one of the planets could possibly…

NASA recently discovered seven Earth-like exoplanets orbiting a star 40 light years away from Earth. Any one of the planets could possibly harbor life,…

Some of the planets could be home to liquid water, but it remains unclear whether life could exist on such strange worlds.

An astronomy park dedicated to the late U.S. Senator and astronaut was in the making almost two years before his passing last December. Now, the site will…

Carlo Rovelli's new book is a gem: It's full of wonderful analogies and imagery — and is a celebration of the human spirit, in "permanent doubt, the deep source of science," says Marcelo Gleiser.

On Jan. 27, 1967, three astronauts were killed when a fire broke out in their Apollo 1 cockpit during a test on the launchpad. The capsule will be put on public view for the first time Friday.