NEWS #meteorite

New paper alert: Thermal metamorphism and volatile evolution in unequilibrated ordinary chondrites: Implications for the delivery of hydrogen to terrestrial planets (Dec. 16th 2024)

A new paper from our group studied the impact of thermal metamorphism on the delivery of volatile elements to early Mars.

New paper alert: Nitrogen in the Orgueil meteorite: abundant ammonium among other reservoirs of variable isotopic compositions (Oct. 14th 2024)

A new paper from our group demonstrates the presence ammonium in the Orgueil meteorite and confirms its extraterrestrial origin through nitrogen isotopes.

Earth may have had a ring in the Ordivician? (Sep. 16th 2024)

A 40 million year spike in impact craters near the paleo-equator suggests that a large asteroid nearly hit the planet, broke apart from tidal forces, formed a ring, and then fell to the surface over millions of years.

How to recognize a meteorite #2 (video in french)? (Jan. 11th 2024)

In this video, I explain how to recognize a "possible meteorite". (Ⓒ OSUG).

How to recognize a meteorite #1 (video in french)? (Dec. 19th 2023)

New meteorite recovered after fireball lights up skies above central France (Sept. 9th 2023)

A new meteorite has been recovered in France after a fireball was widely observed on the night of 9 September 2023 by FRIPON fireball cameras and eyewitnesses. A local resident of Sauldre et Sologne reported finding a potential meteorite on her property, which was later confirmed by experts. (Ⓒ FRIPON/Vigie-Ciel/Asma Steinhausser).