An exhaustive examination of lunar gravity using data obtained by two NASA robotic spacecraft is offering new clues about why ...

Mars today no longer has active volcanoes. But that might change because of a mysterious structure lurking under the surface ...

A fresh look at data from NASA's Magellan mission has revealed potentially ground-shaking insights into mysterious structures ...

A decade-long NASA study has uncovered unexpected secrets deep inside the Moon, reshaping what we know about its ancient past ...