Here we go again. Lego has been running make and take events all year, providing fans with the opportunity to build and take home exclusive models for absolutely nothing. Looking for the catch? There ...

Oceans of lava might bubble on its surface. Hot pebbles may rain down from the sky. But the extrasolar planet CoRoT-7b is considered to be the most Earthlike world yet found outside our solar system.

The atmosphere of Jupiter's moon, Io, is constantly fluctuating, finds NASA-funded research. According to a press release issued by the agency, "The new study documents atmospheric changes on Io as ...