“As we go around the center of the galaxy, the local conditions change ... “You need to go to one of these airless bodies like the moon and find old rocks from maybe 250 million years ...

A pneumatic drill used bursts of nitrogen gas to blow away soil and rock, reaching three feet below the surface. A probe measured temperatures and the flow of heat from the moon’s interior.

It grew larger thanks to countless collisions between dust particles, asteroids, and other growing planets, including one last giant impact that threw enough rock, gas, and dust into space to form the ...

A new study from SETI Institute scientists Dr. John Marshall and Dr. Lori Fenton suggests that wind on Titan might be able to roll pebbles or even small rocks across its surface. The findings provide ...

A sample return mission on the moon’s near side in 2020 yields nearly 4 pounds (1.7 kilograms) of lunar rocks and dirt. Another sample return mission from the far side in 2024 delivers rocks and ...