Planet-hunting Kepler spacecraft in trouble

It went into safe mode on Tuesday, May 14 after the #4 reaction wheel, needed to orient the spacecraft, would not spin.

Video: May 10 ring of fire annular solar eclipse

Beautiful video of ring of fire eclipse by astrophotographer Colin Legg, who used three cameras along the ecliptic path in western Australia.

Orion’s hidden fiery ribbon

This dramatic new image of cosmic clouds in the constellation of Orion reveals what seems to be a fiery ribbon in the sky.

Here’s how NYC would look under the skies of other worlds

"I felt that if I could show people what New York City looked like on other planets, I'd give people a sense of how lucky we are to be living on Earth."

MIGHTI Slated for Launch on ICON Mission

A instrument designed to study the Earth's thermosphere is part of a satellite mission that NASA has selected to move forward into development.

Astronaut Chris Hadfield on how to take pictures from space

In this video, ISS Commander Chris Hadfield shares his techniques of taking pictures of the Earth from space.

Three X-class flares in 24 hours

The sun emitted a third significant solar flare in under 24 hours on May 13, 2013 - the strongest X-class flare of the year so far.

New method of finding planets scores its first discovery

A team has just discovered an exoplanet using a new method that relies on Einstein's special theory of relativity.

Video: X-flare erupts on sun May 13

NASA says it is the strongest solar flare so far this year.

Project 1640 seeking clues to atmospheres of distant worlds

"It's like taking a single picture of the Empire State Building from an airplane that reveals a bump on the sidewalk next to it that is as high as an ant."