Astronomers didn’t even know sub-Neptunes existed until NASA’s Kepler mission uncovered them over the past decade. Although a ...

NASA's PUNCH mission, a tiny constellation of four satellites, captured a photo of the moon drifting across the sky through a ...

Scientists have uncovered evidence of a hidden ocean beneath the Moon’s surface—suggesting it may hold more water than ...

Half a century after the Apollo astronauts left the last bootprints in lunar dust, the moon has once again become a ...