News
- Life
Time to chill
Well-preserved fossils deposited in an Antarctic lake about 14 million years ago pin down when a large part of the now-icy continent most recently dipped below freezing.
- Health & Medicine
Nanomagnets tackle cancer
Under the influence of an external magnetic field, tiny magnets act as highly localized space heaters, warming to temperatures that kill adjacent cancer cells.
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- Space
Officially ice
Phoenix Mars Lander detects water, a landmark that, along with other successes, prompts NASA to extend the mission.
- Humans
Wake-up call for sleep apnea
A large, long-term study of sleep apnea links the breathing disorder to increased risk of death.
- Chemistry
Small steps toward big energy gains
New studies with different fuel cell catalysts show promising results.
- Space
How a star is born
Researchers have developed a new and accurate simulation of the birth of the first stars in the universe.
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- Health & Medicine
Dopamine could help the sleep-deprived still learn
Sleep loss impairs fruit flies’ ability to learn, just as it does in people. But boosting dopamine in the flies can erase these learning deficits.
- Astronomy
Save the date: solar eclipse
NASA will broadcast and webcast the next total solar eclipse Aug. 1, live from China
- Health & Medicine
Promising HIV gel fails in latest trial
Halted in trials, an anti-HIV gel is ineffective, but may not add to risk of infection, as previously thought.
