Meteorites

A meteorite found in the Sahara Desert has provided the first direct evidence of a massive protoplanet that orbited the young Sun more than 4.5 billion years ago. The object, comparable in size to the Moon, was destroyed in a collision, leaving fragments that reached Earth. Researchers say the discovery reveals a previously unknown path in early planet formation.

May 26, 2026 由 AI 报道

Researchers have traced the origins of diverse early space rocks to a dust trap just outside Jupiter's orbit. The findings come from computer simulations matching meteorite compositions found on Earth. They suggest this region produced multiple generations of planetesimals over millions of years.