These images mark an early milestone in the mission, confirming that OSIRIS-APEX is healthy and on course for its 2029 ...

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

The Moon is getting 1½ inches (3.8 centimeters) farther away from the Earth every year. Scientists measure the distance to ...

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

New research suggests Earth's Moon formed from the catastrophic collision of our planet with its \"sister\" planet, Theia, born nearby. This \"sibling\" p ...

The Moon's far side never faces Earth, so currently, radio signals cannot reach us directly. But it may change in the future.

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

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

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

Oxygen ion irradiation from Earth's wind drives oxide formation on the lunar surface, causing the Moon to oxidize due to the ...

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 ...

The moon will reach its first-quarter phase in Pisces on Nov. 28. Here's what the transit means for your zodiac sign, ...