Two years after it stirred up speculation about the possibility of alien life, the Kepler Space Telescope will be at the center of a NASA announcement on Thursday. NASA does not mention aliens ...

NASA rover Perseverance collected evidence being considered by agency officials as 'the closest we have ever come to ...

LOS ANGELES NASA’s planet-hunting Kepler telescope is broken, potentially jeopardizing the search for other worlds where life could exist outside our solar system. If engineers can’t find a fix, the ...

Space-watchers saw the handwriting on the wall months ago, but now it’s official: NASA’s Kepler spacecraft, by far the most successful planet-hunting telescope in history, isn’t coming back. Engineers ...

Viking consisted of two twin orbiters and landers, with experimental chambers in the landers to conduct three biology ...

The world’s greatest space telescopes have all been round. Now, a new rectangular design could turbocharge our search for ...

An exciting discovery on Mars is being overshadowed by turmoil at NASA, with budget cuts threatening to destroy a scientific ...

Humanity may be one step closer to finally answering the question of whether we're alone in the cosmos with a definitive "no." A team of astronomers said it has found signs of what could be ...

A biosignature is any characteristic, element, molecule, substance or feature that serves as evidence for past or present ...