Life at Alpha Centauri? Maybe, NASA says

Could life exist on planets in the star system closest to ours, Alpha Centauri? Dangerous X-ray radiation makes it unlikely for the single exoplanet found so far. But new data suggest better odds for any new planets yet to be discovered.

A giant dust storm is raging on Mars

One of the thickest dust storms ever seen on Mars has been spreading since early June. The Opportunity rover - 1 of 2 active rovers on Mars - has suspended science operations.

ALMA spies 3 planets around a young star

Astronomers have evidence for 3 infant planets forming in a disk around a newborn star. They say their new observing technique could find some of the youngest planets in our galaxy.

Watch spacewalk June 14

On Thursday, 2 astronauts aboard the International Space Station will conduct a 6 1/2 hour spacewalk. NASA's live coverage begins at 10:30 UTC (6:30 a.m. EDT). The spacewalk itself is scheduled to start at 12:10 UTC (8:10 a.m. EDT).

The strange case for life in other universes

More about the mind-boggling new studies suggesting that there could be many parallel universes beyond our own, where life is able to flourish.

From pulsar to magnetar? Or vice versa?

Since the 1970s, scientists have treated pulsars and magnetars as 2 distinct populations of objects. Now they think they might be stages in a single object's evolution. A new NASA ScienceCast has more.

No Planet Nine? Collective gravity might explain weird orbits at solar system’s edge

Astronomers have been searching for a Planet Nine - a world about 10 times Earth's mass - for about 2 years and have yet to spot it. Maybe there's another explanation?

Rover finds 2 new life clues on Mars

"Are there signs of life on Mars? We don't know, but these results tell us we are on the right track."

More mystery objects near Milky Way’s giant black hole

Astronomers call them G-objects. The 2 previously known ones came incredibly close to the Milky Way's central black hole, yet survived. Now astronomers report 3 more of these mystery G-objects near the heart of our galaxy.

Mars explorers wanted!

Can you picture yourself as an explorer, farmer, surveyor or teacher on Mars? Download a NASA Mars poster (free!) that speaks to you.

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