Mars's atmosphere and climate are impacted by interactions with solar wind, a stream of plasma comprised of protons and ...

The lines were later revealed to be illusory, perhaps caused by streaks of dust carried by the wind. For life to exist on Mars, there must be liquid water. There is plenty of water on Mars ...

A NASA satellite has spotted frozen "kidney beans" on Mars' sand dunes trapped in place until springtime. Photographing them ...

Researchers have discovered two sets of ancient wave ripples on Mars, signatures of long-dried bodies of water preserved in ...