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.

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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.

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

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

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

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

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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).

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Fireball seen over south of Paris, France (Sept. 9th 2023)!

A fireball was spotted over France on September 9th 2023 around 22:14 UT (Ⓒ Cédric H).

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