"What If is an epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a ...

Researchers have unveiled new findings that reshape our understanding of the Moon's formation and Earth's early hydration.

A huge rock orbiting near Earth appears to have originated from the moon, the second such object known to exist, with maybe more than a dozen awaiting discovery. The asteroid, called 2024 PT5 ...

Even Earth's moon had a 95% chance of supporting a stable ring system in the simulations. "[W]e did not anticipate that moons in a hostile gravitational environment, with many other moons and ...