Caltech The News Today

A new study suggests that two continent-sized blobs of unusual material located deep near the center of the Earth are remnants of an ancient planet that violently collided with Earth billions of years ago, in the same giant impact that created our moon.

NASA has given up on its Mars mole, a revolutionary experiment designed to burrow 16 feet and take the planets temperature mmcfalljohnsen@businessinsider.com (Morgan McFall-Johnsen) © NASA/JPL-Caltech The InSight landers heat probe, or "mole," poking out of the hole where it got stuck on October 26, 2019. NASA/JPL-Caltech NASA is giving up on its Mars mole — a pile driver designed to hammer its way up to 16 feet below the Martian surface — after two years of trying to dig...