When Alaska’s Cleveland Volcano puffs out ash

Scientists keep an eye on this volcano, which can be hazardous to aircraft. When it releases ash, its "aviation code color" may be raised from yellow to orange.

Lightning flashes leaked to space resemble atmospheric heartbeart

A global electromagnetic resonance created by the combined lightning storms across our planet.

Light earthquake in eastern Kentucky felt from Cincinnati to Atlanta

The 4.3-magnitude quake had a shallow epicenter under the Appalachian Mountains town of Blackey. No immediate reports of injuries or damages.

Superstorm Sandy tracked by European Space Agency water mission

When bracing for the onslaught of extreme weather, as much information as possible is needed to predict the strength of the impending storm.

Oddly shaped deep sea carnivorous sponge found off coast of California

Ocean scientists have collected another example of an unusual deep sea carnivorous sponge, shaped like a harp, off the coast of northern California.

Baby turtles don’t just go with the flow

With just a few hours of paddling a day, tiny loggerhead hatchlings navigate powerful currents, using the Earth's magnetic field to orient themselves.

What is a black hole?

Black holes are the remnants of very massive stars with gravity so strong that not even light can escape.

Future warming likely to be on high side of climate projections, analysis finds

Climate models that project a greater rise in global temperature are likely to prove more accurate than those showing a lesser rise, scientists say.

Meet Xenoceratops: Canada’s newest horned dinosaur

Scientists have named a new species of horned dinosaur (ceratopsian) from Alberta, Canada.

Nor’easter about to hit the US Northeast

Another storm is hitting the same areas that were affected by Hurricane Sandy. More power outages are expected as strong winds impact the Northeast.