Our satellite is a little off-balance. GRAIL data show a mass asymmetry of a few percent between its near and far sides.

Discover interesting facts about how the moon formed, what it's made out of, and the many missions humans have launched to ...

Jupiter, roughly 562 million miles from Earth today, has nearly 100 moons. But Batygin and his collaborator Fred Adams' research focused on two of the smaller ones, Amalthea and Thebe. Both are inside ...

NASA's Perseverance rover is exploring a new Mars region called Krokodillen, which is thought to harbor some of the oldest and most intriguing rocks on the Red Planet.

At the other end of the Earth, the Antarctic Polar region has the ... are found close to the Equator where the energy from the Sun is more concentrated. The tropical rainforests of the world ...

Scattering also explains the colors of the sunrise and sunset, Ackerman says. “Because the sun is low on the horizon, sunlight passes through more air at sunset and sunrise than during the day ...