All Stories
- Earth
A great quake coming?
The 100th anniversary of the great San Francisco earthquake is a reminder that future quakes could cause even more damage.
- Planets
Saturn’s Strangely Warm Moon
Saturn's mysterious moon Enceladus may have liquid water close enough to its surface to produce giant geysers.
- Health & Medicine
Prehistoric trips to the dentist
Thousands of years ago, some people had holes drilled into their teeth.
- Planets
Jupiter’s Second Red Spot
Several huge storms have merged to give Jupiter a second red spot.
- Tech
Microbes at the Gas Pump
Bacteria and other organisms can turn waste plant material into fuel for cars.
- Planets
Saturn’s rings created by collision
A shattered moon may have produced Saturn's dazzling rings.
- Brain
Storing Memories before Bedtime
The brain begins processing lessons learned during the day long before bedtime.
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- Planets
Fiery Dust from an Icy Comet
Dust samples from a comet contain minerals that form only at high temperatures.
- Earth
Coral islands survive a tsunami
Tiny islands far out in the ocean can weather the giant waves of a tsunami.
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- Animals
Ultrasonic Frogs Raise the Pitch
Some frogs that live in noisy streams communicate by using ultrasonic calls.
