En analysant de la poussière d’étoiles piégée dans la glace de l’Antarctique, des chercheurs ont mis au jour un indice inédit sur le déplacement du Système solaire à travers la galaxie. Une découverte qui pourrait éclairer l’origine de mystérieux nuages interstellaires.
- Honorary Lecturer, Nuclear Physics, Australian National University
We can study the cosmos by tracing debris from exploding stars right here on Earth.
There seems to be too much of a radioactive element in rocks deep in the Pacific Ocean – how did it get there 10 million years ago?
Traces of radioactive iron from the ocean floor, Antartica and the Moon reveal several waves of dust from distant stars over the past 10 million years.
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