After cataloging thousands of worlds beyond our solar system, astronomers are now closing in on a far rarer prize: a moon ...

NASA has selected two science instruments designed for astronauts to deploy on the surface of the Moon during the Artemis IV mission to the lunar south polar ...

NASA is closing in on a pivotal choice for the vehicle that will carry astronauts across the Moon, and the agency is quietly ...

On Earth, knowing the time feels simple. Your phone pings the same second as a GPS satellite and an atomic clock in a lab.

Conventionally, the moon is thought to have formed during one big impact, but a three-impact model might make more sense ...

Learn how Albert Einstein’s theory reveals that time on Mars runs faster than on Earth — and why that tiny shift matters for future space missions.

After decades of searching, astronomers may have finally stumbled upon the first moon known to exist beyond our solar ...

After decades of searching, astronomers may have finally stumbled upon the first moon known to exist beyond our solar ...

Searching for exomoons—moons that orbit around another planet—was one of the most exciting capabilities expected of the James ...

Little is known about the long-destroyed moon-forming planet, Theia. But it may have been born in the inner solar system—just like Earth—a new study suggests ...

Before you buy stock in Firefly Aerospace, consider this: The Motley Fool Stock Advisor analyst team just identified what ...

That’s also true for the other moons that provide the gravitational stress. As a result, the internal oceans may actually ...