aqueous minerals

What a Misplaced Meteorite Told Us About Mars

11 million years ago, Mars was a frigid, dry, dead world, just like it is now. Something slammed into the…

1 month ago

Asteroid Samples Were Once Part of a Wetter World

Nine months have passed since NASA's OSIRIS-REx returned its samples of asteroid Bennu to Earth. The samples are some of…

6 months ago