Des porte-échantillons contenant la poussière de l’astéroïde Bennu, témoin de temps immémoriaux. Erika Blumenfeld & Joseph Aebers/JSC

Découverte d’eau salée et d’acides aminés sur un astéroïde, un pas de plus pour comprendre l’émergence de la vie

Deux nouvelles études montrent qu’un environnement saumâtre et riche en carbone sur l’ancêtre de l’astéroïde Bennu était propice à l’assemblage d’éléments constitutifs de la vie.
The November 27 fireball as photographed by the Desert Fireball Network observatory at William Creek, South Australia. Desert Fireball Network

How to find a meteorite that’s fallen to Earth

It’s no easy task to find a meteorite that’s just been seen flashing across the sky. But it helps if you have an automatic network of “eyes” on the night sky.
This digital false-colour image shows the dark, narrow streaks on Martian slopes inferred to be formed by seasonal flow of water on the planet. The streaks are roughly the length of a football field. Image Credit: NASA/JPL-Caltech/Univ. of Arizona

There is water on Mars, but what does this mean for life?

Now that we have discovered liquid water on the surface of Mars, what does this mean for the prospects of finding life there, past or present?
A bright flash over Russia’s Chelyabinsk region may have been a meteor. YouTube screenshot

Meteorite soars over Russia

A fireball has flown over Russia, delivering a sonic boom with enough force to shatter windows, amateur footage shows. The astronomical event comes just one day before a large asteroid is expected to pass…

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