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

The sun's gravity will pull the moon farther away from Earth than it's been in over five years on Nov. 19, though it'll be ...

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

The sun’s gravity would be pulling the moon away from Earth on November 20, 2025, at a distance that it had never been in the ...

Is there a full moon tonight? Here's what to know about today's special moon phase and when to look up for the next meteor ...

The last supermoon of 2025, known as the Cold Moon, is set to light up December skies with its increased size and brightness.

The next full moon will be the last supermoon of 2025, set to shine for days. Here's when to watch and what to know about ...

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

Your last chance to see a supermoon in 2025 is approaching quickly. December's full moon is scheduled to appear on Dec. 4, ...

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

“Impact flashes on the moon are very common,” University of Colorado Boulder astrophysical and planetary sciences professor Paul Hayne said. “In fact, they happen more or less every night, and it’s a ...

In the chaotic infancy of the Solar System, a protoplanet the size of Mars called Theia smashed into the Earth and formed the ...