Around 4.5 billion years ago, a planet called Theia is thought to have smashed into newborn Earth. The messy collision kicked ...

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

In the upcoming issue of the journal Science, researchers determine the possible composition of Theia, the body that collied with Earth 4.5 billion years ago thus creating the Moon. The impactor’s ...

For the first time, astronomers have observed the initial phase in the formation of an earth-like planet. The discovery, highlighted in the March 13th issue of Nature, was documented by a team of ...

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

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

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

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

New images of a young star made with the Karl G. Jansky Very Large Array (VLA) reveal what scientists think may be the very earliest stages in the formation of planets. The scientists used the VLA to ...