The Apollo missions changed how scientists understand the moon. Returning with Artemis could help solve some of the biggest lunar mysteries.
ESA's Proba-2 satellite captured a stunning 'ring of fire' annular solar eclipse from orbit — a view few on Earth could see.
For centuries, astronomers have watched brief, unexplained flashes light up the lunar surface, a phenomenon so persistent and strange that it earned its own scientific label: Transient Lunar Phenomena ...