Hurricanes will occur less frequently but be slightly wetter and stronger, predicts the latest finding in the contentious debate over global warming and hurricanes.

Amid stormy debate, British lawmakers have voted to allow the use of human-animal hybrid embryos for stem cell research.

A decade after its discovery, scientists are struggling to pin down the properties of the "dark side" of gravity and unravel a mystery that accounts for about 74 percent of the universe.

The tree-dwelling creatures were put on a specially built treadmill of ropes and pulleys as part of new research into how much energy the animals expend.

Real-life rocket man Yves Rossy soared through the Alps this week on his first demonstration flight with a self-made flying contraption.

See "Fusion Man" fly via a jet-powered wing on his back, a giant beetle escape a smuggler, volcanic ash falling eerily, and more.

Mars's ice caps are about five million years old, and its bedrock is puzzlingly cold and thick, reducing the boundary where liquid water may exist, a new study suggests.

Using a rope treadmill, researchers have revealed that tiny species use no more energy climbing vertically than they do walking on the ground, a find that bolsters theories about the earliest primates.

Thought to have exploded just 140 years ago, the supernova will allow scientists the rare chance to observe an astronomical event in action.

Two amateur videos taken in Chengdu, China—near the epicenter of Monday's devastating earthquake—show people running in panic as the ground shakes.

Scientists hope the summer emergence of pregnant females can shed some light on the enigmatic white-nose syndrome—before time runs out for the animals and their environment.

Monday's devastating earthquake in central China occurred along a fault where South Asia pushes against the Eurasian land mass, scientists say.

As the death toll from Monday's quake in China nears 12,000, survivors are being pulled from the rubble of buildings and schools.

Two weeks before the Mars Phoenix Lander is slated to touch down, scientists say they are ready for the critical descent phase that could make or break the mission.

A species of Chinese frog has evolved an elaborate system of ultrasonic mating calls to circumvent its noisy hot spring environment, researchers say.