He stoked ‘deep state’ conspiracy theories. Now they’re coming back to haunt him.

Sometimes I look at the Moon and realize how little I actually know about it—what it's made of and how it formed. In this video, I explore NASA's Johnson Space Center and their top-secret lab that ...

Artist’s impression of the collision between the early Earth and Theia. Since Theia originated in the inner Solar System, in this perspective the Sun can be seen in ...

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.

When it comes to the origin of our planet’s moon, the giant-impact theory is the most widely accepted premise. According to the theory, a massive planet-sized body slammed into the young Earth around ...

New research suggests that Theia, the object whose collision with Earth is theorized to have caused the formation of the moon, came from closer to the sun. Artist’s impression of the collision between ...

The moon's heavily cratered surface serves as a testament to how Earth's closest celestial neighbor has become a figurative magnet for space rocks during its 4.5 billion-year history. One of the best ...

Apollo 17 brought home more than dust and stones. A new study reports that some lunar rocks carry an unusual sulfur signature that does not match Earth’s. That mismatch lives in tiny mineral grains ...

When China’s Chang’e 6 lunar rover returned the first-ever samples from the Moon’s farside, scientists were eager for a rare glimpse into the hidden hemisphere’s interior. Now those hopes have paid ...

WASHINGTON — The moon is sometimes called "two-faced" because the surface of its side perpetually facing away from Earth looks so different than its side always facing our planet. And the differences ...