Life on Mars? Many moons ago, the planet’s conditions were habitable—for microbes, at least. NASA scientists announced Tuesday that analysis of rocks from the Curiosity rover—the first spacecraft sent to Mars that could collect samples from deep within the planet’s crags—found minerals that formed in a habitable watery environment for microscopic organisms. A NASA researcher said humans would have technically been able to drink from Mars’s fountain of life—a stream bed that dried out billions of years ago.
