See the stunning images that the Hubble Space Telescope has beamed back to Earth, learn how it works, and explore the discoveries it has made on its historic mission.

This year's Ig Nobel prizes honor seemingly inane research projects—from the explosive power of penguin bowels to runaway alarm clocks.

A balloon-based spacecraft could survey Mars with rover-level detail in a fraction of the time it takes with ground-based vehicles, scientists say.

Nearly nine feet long (2.7 meters) and as big as a grizzly bear, a huge catfish caught in northern Thailand may be the largest freshwater fish ever recorded.

The earthquake- and tsunami-battered region of Sumatra, Indonesia, is at risk for more temblors and killer waves, scientists warned today.

Everyone knows the Star Wars galaxy is located "far, far away." But how realistic are the alien worlds described in the science fiction saga?

As peak tourist season draws near in Australia's Kakadu National Park, rangers are busy "managing" the preserve's 7,000 resident crocodiles.

Like Albert Einstein, British comic sci-fi author Douglas Adams sought a unified theory to explain the universe. Well, sort of. His answer, The Hitchhiker's Guide to the Galaxy, hit U.S. movie theaters this weekend.

Swiss adventurer Bertrand Piccard hopes to make history with an around-the-world flight in a solar-powered airplane. Will it work?

Freakish and fast-moving, the river phenomena known as tide waves have given rise to a new extreme sport: tidal-bore surfing.

The recent crash of a U.S. nuclear submarine into an undersea mountain served as a reminder that we know little about the geography of the ocean floor.

When the San Francisco ran into an undersea mountain on January 8, the impact shredded its nose, killed a sailor, and injured 60 more.

Cougars are increasingly common in the U.S. Midwest and the suburbs of the West—areas where the cats have been all but invisible for a hundred years.

In an interview, filmmaker Wes Anderson discusses his boyhood fascination with Jacques Cousteau, the inspiration behind his new movie, The Life Aquatic With Steve Zissou.