Deep beneath the forests and lakes of northern Minnesota, researchers say they have found traces of a substance long treated ...

American geologist and astronaut Harrison Hagan Schmitt takes rock samples from the surface of the moon during America's last lunar landing mission of the 20th century, Apollo 17, December 1972.

NASA’s Apollo missions brought back moon rock samples for scientists to study. We’ve learned a great deal over the ensuing decades, but one enduring mystery remains. Many of those lunar samples show ...

Where did the moon’s magnetism go? Scientists have puzzled over this question for decades, ever since orbiting spacecraft picked up signs of a high magnetic field in lunar surface rocks. The moon ...