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

A new study shows the mysterious impactor probably formed in the inner solar system, right next to early Earth.

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

Isotopic fingerprints in lunar, terrestrial, and meteorite samples show Theia formed in the inner Solar System, likely near ...

About 4.5 billion years ago, the most momentous event in the history of Earth occurred: a huge celestial body called Theia ...

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

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

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

Theia' is a long-vanished world, a planet-sized body thought to have smashed into the early Earth and that helped to form the ...

Researchers from the Max Planck Institute for Solar System Research led the study. They examined iron isotopes in 15 Earth ...

The most widely accepted explanation for how the Moon was formed is the giant-impact theory. It states that a Mars-size ...

A protoplanet crashed into Earth more than four billion years ago, ejecting the Moon. It is now clear where the protoplanet ...