Space Agency Announces Earth's True Shape And More April Fool's News Also in: CERN renamed itself, proof of homeopathy, and using the eclipse to hunt a lost planet.

Researchers studying decades of earthquake data say they have found the first evidence that, in addition to spinning backward, Earth’s inner core in changing shape.

On Earth, things evolve into crabs—could the same be true in space? Evolution experts were kind enough to answer Ars' questions about alien crabs.

A new model developed by UConn researchers now accounts for three-dimensional movement, allowing better tracking of animals ...

The true shape of Earth’s orbit: nearly a circle. Length a is the semi-major axis of the ellipse and b the semi-minor axis.