They went through the isotope mixtures in Earth and lunar rocks instead of using highly technical models. They dabbled in ...

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

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

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

A collision between Earth and a massive Mars-sized protoplanet likely caused the formation of our moon. Now scientists from ...

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

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 ...

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

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

SPACE (KXAN) — We’re seven years away from a possible asteroid impact on Earth. The asteroid, 2024 YR4, has a 1-in-43 chance of striking the Earth and is the size of Cinderella’s Castle at Disney ...

The asteroid, known as 2022 RD2, belongs to a rare class of space rocks called Arjunas. These objects travel around the sun ...

Ukrainian scientists have discovered a massive asteroid; NASA responds. This diagram shows the orbit of asteroid 2013 TV135 (in blue), which has just a one-in-63,000 chance of impacting Earth. Its ...