Scientists unearth meteorite

Scientists believe they have identified a meteorite formed in the first million years of our solar system, making it the oldest known meteor of volcanic origin.

The space rock, which began its journey some 4.5 billion years ago, has already proved an "exceptional" witness to the building blocks of the planets. Known as Erg Chech 002, the meteorite was discovered in May 2020 by meteor hunters in the Algerian Sahara desert. It had rested undisturbed for "at least 100 years", according to Jean-Alix Barrat, a geochemist at France’s Brest University.

In a recent study published in the Proceedings of National Academy of Sciences journal, Barrat and his colleagues describe its discovery and several rare features.

There are 43 officially documented fragments, but "probably about a hundred" either still in the ground or unaccounted for, said the study. The largest ones are "as big as a fist", Barrat said.