A 6.6-magnitude earthquake in Guatemala last night caused injuries, in part from collapsing buildings. One woman died of a heart attack during the quake.

A night launch yesterday from Wallops Flight Facility in Virginia sent the LADEE spacecraft to the moon. It'll study the lunar atmosphere and dust.

New video from asapSCIENCE. Some Friday fun with optical illusions!

North Carolina State University researchers have come up with a new technique for improving the connections between stacked solar cells, which should improve the overall efficiency of solar energy devices and reduce the cost of solar energy production.

Gabrielle is the seventh named storm of the 2013 Atlantic Hurricane Season. Fortunately, the system is weak and will not last long after pounding Puerto Rico on Friday.

Three stargazers up before dawn with the planet Jupiter, and the V-shaped Face of Taurus the Bull. Orion the Hunter is just over the horizon. Plus a green meteor!

Nerve circuits let the brain turn down sounds that come from our own actions, and turn up other sounds we need to pay attention to, say researchers.

The tornado that struck El Reno, Oklahoma on May 31, 2013 has been reclassified from an EF-5 to a EF-3 tornado. Why?

Unlike volcanoes that emerge from collision zones between tectonic plates, hotspot volcanoes form in the middle of the plates.

“If one of these objects was found orbiting a star, there is a good chance that it would be called a planet.”