While the Milankovitch Cycles operate on timescales far longer than human lifespans, their effects are always at play.

At half the size of Earth and one-tenth its mass, Mars is a featherweight as far as planets go. Yet new research reveals the ...

Imagine Earth covered in thick sheets of ice. And sea levels so low you could walk to a different continent. This is what our planet would look like during an ice age. There have been five of them in ...