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

The lack of clarity regarding the collision and the object that Earth collided with raised many questions, but they were ...

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

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

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

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

About 4.5 billion years ago, a colossal impact between the young Earth and a mysterious planetary body called Theia changed everything—reshaping Earth, forming the Moon, and scattering clues across ...

In the current issue of the journal Science, researchers determine the possible composition of Theia. The impactor’s ...

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

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

The outer planets of the Solar System are swarmed by ice-wrapped moons. Some of these, such as Saturn’s moon Enceladus, are ...