News
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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.
- Archaeology
Greeks followed a celestial Olympics
A Greek gadget discovered more than a century ago in a 2,100-year-old shipwreck not only tracked the motion of heavenly bodies and predicted eclipses, but also functioned as a sophisticated calendar and mapped the four-year cycle of the ancient Greek Olympics.
- Planetary Science
Cassini finds liquid ethane on Titan
After years of speculation, planetary scientists have now confirmed that Titan has at least one lake made of liquid ethane.
- Life
How the snake got its fangs
A study of snake embryos suggests that fangs evolved once, then moved around in the head to give today’s snakes a variety of bites.
