Long before the large-scale Earth Day protests on April 22, 1970 – often credited with spurring significant environmental ...

Astronauts already deal with a host of health risks each time they visit space, but if they ever make it to Mars, they'll have to reckon with yet another. New research has found that the planet's ...

Lake Salda, in southwestern Turkey, bears a close resemblance to Mars' Jezero crater, which is currently being sampled by ...