Mariek Schmidt

@marschm.bsky.social

Volcanologist Petrologist on Earth and Mars, Professor and Chair of Earth Sciences at Brock University, Canada. Mom of two humans, one cat, one dog

Before Europeans arrived, these were some of the names for The Great Lakes: Superior: gichi-gami (great sea) Erie: erielhonan (long tail) Michigan: michigami (long body of water) Ontario: Ontarí'io\kanadario (great lake\beautiful water) Huron: karegnondi (fresh water sea)

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This fist-sized rock on the surface of Mars is part of a deposit of native sulfur, which has been preserved for three billion years. It is interpreted to have been formed by the eruption and solidification of a subsurface sulfur-rich vapor. Learn more this week in Science: https://scim.ag/4ginhe9

This fist-sized rock on the surface of Mars has been cracked open by the weight of the Curiosity rover driving over it, revealing a yellowish interior of crystalline sulfur. The rock is part of a deposit of native sulfur, which has been preserved for three billion years. It is interpreted to have been formed by the eruption and solidification of a subsurface sulfur-rich vapor.

Credit: NASA/JPL-Caltech/Malin Space Science Systems