Two perplexing structures deep inside Earth might be ancient remnants of our early planet, and they could hold clues about ...

Conventionally, the moon is thought to have formed during one big impact, but a three-impact model might make more sense ...

One of the most elegant theories about the origins of life on our planet is that it was kick-started by a delivery from outer ...

One fateful day about 4.5 billion years ago, a Mars-sized body called Theia collided with proto-Earth, turning both into a ...

A new study reveals that the asteroid 2024 PT5, which has been orbiting Earth for 2 months, may have a "lunar origin." However, it is about to break free from our planet, making it tricky to tell for ...

How did life begin? An international team of researchers from Japan, Malaysia, the UK, and Germany suggest that the answer ...

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

For nearly a decade, a near-Earth asteroid named Kamo’oalewa has invoked speculation over how it came to orbit the Sun in total synchrony with Earth as though it shares some special relationship with ...

A look at new research showing how snowmelt, trees, and underground water shape the flow of mountain streams long after ...