This Mineral Is What Makes Mars Red — And It Shows the Planet Was Once Cold and Wet
Mars' dust may be key to understanding the planet's watery past.
Mars' dust may be key to understanding the planet's watery past.
There seems to be much more we don't know about marsquakes and Martian geology.
Mars' surface may hide evidence of volcanoes that are still active.
We don't know whether Mars held life... but there's certainly a lot of potential.