All Stories
- Space
Killers from Outer Space
A newly revised scale rates the risk that an asteroid may crash into Earth and wipe out life as we know it.
- Animals
Glimpses of a Legendary Woodpecker
Long feared extinct, the ivory-billed woodpecker has been spotted in Arkansas.
- Environment
Cleaning up fish farms
Although fish farms can supply lots of food, these operations may also cause pollution and hurt wild populations.
- Animals
Awake at Night
Mutant fruit flies can get by with less sleep than these insects normally need.
- Planets
Solving a Sedna Mystery
Astronomers are learning more about the most-remote object known in the solar system.
- Chemistry
Popping to Perfection
Scientists have uncovered why some popcorn kernels stay unpopped in the microwave.
- Animals
Putting a Mouse on Pause
A gas known as hydrogen sulfide can put mice into a state resembling hibernation.
- Brain
Lightening your mood
Bright light may help some people who are seriously depressed feel better.
- Space
Return to Space
NASA is readying the space shuttle Discovery for its first launch in more than 2 years.
- Animals
Doing the Bob
A crane's jerky neck movements may allow the bird to see its food more clearly.
- Fossils
Dinosaur Eggs-citement
Scientists have found dinosaur eggs, with their shells on, inside a female dino fossil.
- Health & Medicine
Food for Life
New food guidelines emphasize that we should eat more fruits, vegetables, and whole grains.
