Scientists studying Saturn’s mysterious moon Enceladus say it may be one of the most promising places in our solar system to ...

Elon Musk says true immortality lies in preserving human stories forever through a space-based AI encyclopedia, not in living ...

The solar system is about to bid a permanent goodbye to a rare guest that has journeyed from the deepest reaches of the Milky ...

Sputnik skies to analysis of interstellar visitors, scientists are rethinking how and where to look for physical traces of ...

NASA's giant new moon rocket moved to the launch pad Saturday in preparation for astronauts' first lunar fly-around in more ...