About 4.5 billion years ago, Earth had a violent neighbor. A young, still-forming planet named Theia slammed into our world ...

If you know any bit of information about how the moon was created, new research indicates that everyone has believed wrong.

Scientists traced the Moon's parent planet Theia to the inner Solar System, solving a 4.5-billion-year mystery.

Roughly four and a half billion years ago the planet Theia slammed into Earth, destroying Theia, melting large fractions of ...

New research suggests that Theia, the object whose collision with Earth is theorized to have caused the formation of the moon ...

Discover how scientists have used iron isotopes to determine the likely origin of the Mars-sized planet named Theia.

Losing the Moon would shrink tides, disrupt coastal ecosystems, affect nocturnal predators, and destabilize Earth’s tilt, ...

Earth and the planetary object that gave rise to the Moon were likely born in the same region of the solar system.

The moon feels like a beautiful constant for many of us, there every night, but Earth’s satellite is actually slowly moving away from us, albeit very slowly. By NASA’s calculations the moon is ...

It’s a general rule in science that the more you know about some aspect of the natural world, the better you understand it. But rules are sometimes broken, and the question of how Earth got its Moon ...