Late Heavy Bombardment, the 52-year-old theory of a 3.9-billion-year asteroid spike, faces its strongest challenge yet. Chang ...

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.

The moon’s interior may not be that wet after all, despite some recent studies that have suggested otherwise. A new analysis of Apollo rocks backs the old idea of a waterless world. For decades after ...

For decades, a debate has raged about whether the moon ever had a strong magnetic field, or if it was always weak. Now, a new analysis of Apollo-era moon rocks suggests the moon's magnetic field might ...