Curiosity rover searches for new clues about Mars' ancient water

NASA's Curiosity rover has begun exploring a new region of Mars, one that could reveal more about when liquid water disappeared once and for all from the Red Planet's surface. Billions of years ago, Mars was much wetter and ...

With living robots, scientists unlock cells' power to heal

Near the entrance to Michael Levin's lab at Tufts, four deer antlers are mounted on wooden boxes. They represent an incredible feat of regeneration in mammals: Deer shed their antlers annually and regrow the bone, blood vessels, ...