Scientists say they've detected in the harshly acidic clouds of Venus a gas called phosphine that indicates microbes may ...

WASHINGTON, D.C. — NASA shares an update on its multibillion-dollar effort to build a permanent moon base on the lunar south pole. On Tuesday, the U.S. space agency announced nearly $600 million in ...

An award-winning horseman, accomplished pilot, motorcycle enthusiast and real-life space traveller, the 95-year-old is still ...