Jumping back in time, Thuban was positioned as a North Star some 4,700 years ago, as early civilizations thrived in ...

Billions of years ago, water flowed on the surface of Mars. But scientists have an incomplete picture of how the red planet's ...

A groundbreaking studypublished in Nature reveals compelling evidence of a vast ocean trapped deep within the Earth’s mantle, ...

It happened 4.5 billion years ago, when the solar system was full of orbiting space rocks. This debris clumped up in a ...

Lichens on stone, those "still explosions" as the great American poet Elizabeth Bishop named them, remain unseen to most, ...