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

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

This meant that both celestial bodies were neighbors before the collision took place. To support this hypothesis, researchers ...

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

Scientists continue to explore the deep story of how Earth and the moon formed. One idea has gained attention because it ...

According to researchers, the composition of a planet or celestial body holds the entire story of its formation and origin.

"The most convincing scenario is that most of the building blocks of Earth and Theia originated in the inner solar system.

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

To our best of our understanding, the Moon formed from Earth following a colossal impact. A Mars-sized world we nicknamed ...

Theia, the world that helped form the Moon, came from the Solar System. Chemical clues in Earth and Moon rocks reveal this ...

The formation of the Moon may have come harder on the heels of Earth's birth than we thought. According to a new analysis by researchers from the US, France, and Germany, Earth's constant companion ...

A new scientific study is rewriting one of the most recognized origin stories in astronomy: how the Moon was formed may not ...