Scientists have long debated whether most of Earth's vital liquid was delivered via icy comets or was homemade ...

Simulations suggest that two enormous masses of hot rock have been involved in generating Earth’s magnetic field and giving ...

A recent study showed that Mars was warm and wet billions of years ago. The finding contrasts with another theory that this era was mainly cold and icy. The result has implications for the idea that ...

The members of this group share unsettling conspiracy theories, bizarre coincidences, unexpected animal behaviors, and ...