A plume of superheated rock from deep in Earth's crust welled up between the ancient continents, pushing them apart until they collided to form Pangaea, a new study proposes.
The deluge, caused by a dam break in Nepal, has destroyed more than 250,000 acres of farmland, killed at least 90 people, and left at least a million people homeless.
While exploring Venezuelan wilderness, scientists discovered a new catfish. And they got a closer look at a fish species that lives for almost exactly one year.
A Manhattan-size ice chunk, from an ice shelf believed to be thousands of years old, is among many pieces breaking off shelves in the Canadian Arctic this summer.
Bringing high winds and a 12-foot (3.6-meter) storm surge, Gustav slams into the U.S. Gulf Coast, flooding streets and breaking trees but leaving the Big Easy's levees intact.
As Hurricane Gustav churns over the Big Easy, find out how human changes to the landscape have affected how well the city can withstand a powerful storm.
Dwarf galaxies of varying brightness orbiting the Milky Way have a common central mass, says a new study that suggests dark matter can provide the minimum mass required for galaxies to form.
Dental pulp from a wisdom tooth could be a new source of therapeutic stem cells, sidestepping the ethical concerns of embryonic cells, Japanese researchers claim.
A distant cousin of the famous "bullet cluster" shows the same separation of dark and ordinary matter occurring as its two parent galaxy clusters collide at high speed.
