For the first time, spacecraft have observed eruptions on the sun from multiple angles for hours on end—a feat made possible by NASA's twin STEREO craft. Video.

Quick! What should you do if a venomous snake slithers into your workplace? A two-day course in Australia has the answers. Video.

NASA's "moon bombing" Friday morning was successful, but the LCROSS impact proved anticlimatic to many skywatchers.

Giant, jelly-like sheets of dead and living organic matter, known as marine mucilages, are spreading throughout the Mediterranean. The blobs may smother marine life and carry diseases dangerous to humans.

Plastiki, a 60-foot-long (18.3-meter-long) catamaran made of more than 12,000 plastic bottles, will soon ply the Pacific Ocean to increase awareness of environmental problems.Video

Since 1901, the world's most prestigious award has recognized a range of pioneers and luminaries, from Albert Einstein to Al Gore.Video

Inspired by the comic superhero, a spiderbot that can shoot cables with magnetic ends and walk on metal surfaces is under development at Israel's Ben Gurion University. Video

Miners in South Africa recently found what may be one of the 20 largest diamonds ever uncovered—a 507.55-carat gem from the storied Cullinan Mine, which also produced the world's biggest diamond. Video.

A second earthquake shook western Indonesia Thursday as the death toll rose above 500 from Wednesday's powerful quake. Plus, see a computer simulation of Tuesday's Samoan quake and the resulting tsunami waves. Video.

Tsunami waves, sparked by a powerful underwater earthquake, swept away people and cars and flattened villages in Samoa, American Samoa, and Tonga in the South Pacific on Tuesday—as seen in amateur video.

Don't look for seeing-eye cheetahs anytime soon, but the big cats may help disabled people in another way—by inspiring better artificial legs. Video.

New species discovered along Asia's Mekong River in 2008—including a leopard gecko and a fanged frog that eats birds—are already under serious threat because of climate change, WWF says. Video.

The battery-powered "personal mobility device," designed by Japan's Honda Motor Company, is steered as a rider shifts his or her weight in the desired direction. Video.

To help save South Australia's rare black-footed wallaby, researchers are taking joeys from the wild and placing them in surrogate pouches, encouraging wild moms to trigger "backup" pregnancies. Video.

Australia's worst dust storm in 70 years blanketed east coast cities in outback grit and cast an orange glow over Sydney at dawn Wednesday morning. Video.