"The most likely explanation is that it corresponds to human-made debris." ...

CAPE CANAVERAL, Fla (AP) — A NASA rover streaked through the orange Martian sky and landed on the planet Thursday, accomplishing the riskiest step yet in an epic quest to bring back rocks that could ...

Add Yahoo as a preferred source to see more of our stories on Google. Elon Musk is putting his dreams of colonizing Mars on hold. But the moon, where even NASA aims to return astronauts as early as ...