Wet, almost, all over

Water on Mars was surprisingly widespread, long-lasting and perhaps life-friendly

Water on Mars was once widespread and long-lasting, providing environments with the potential to support life, a new study finds.

FLOW AND TRAP It turns out that certain types of clay minerals are widespread on Mars, suggesting that water was also widespread — and at life-friendly temperatures — on the planet early in the solar system’s history, according to a new study.