Uncategorized
- Astronomy
The solar system has a tail
Clover-shaped clumps of charged particles extend billions of kilometers in our wake.
- Earth
Every six years, Earth spins slightly faster and then slower
Changes in day length linked to workings of Earth's core.
- Planetary Science
Gas, not planets, may be source of rings around stars
Interactions between gas and dust may form elliptical patterns.
- Life
Bacterial molecules may prevent inflammatory bowel disease
Common compounds produced by gut microbes quench colitis in mice.
- Astronomy
Clouds may keep exoplanets cool
Even when close to their stars, other worlds could harbor liquid water.
- Space
Interstellar chemistry makes use of quantum shortcut
Reactions in the frigid cold of space are sped by a quirk of physics, researchers propose.
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- Anthropology
Agriculture’s roots spread east to Iran
Dig supports prolonged development of domesticated crops at ancient sites across the Fertile Crescent.
- Health & Medicine
People may have evolved to fight cholera
People in Bangladesh have genetic variations that might defend against the disease.
- Life
Lab-grown liver raises hopes but draws criticism
Though human cells spontaneously group into rudimentary organs, some scientists say work is very preliminary.
- Life
Deadly flu virus flourishes in lung cells
H7N9 influenza's clinging ability in humans and birds raises concerns about increased transmission between species.
- Animals
Hawkmoths squeak their genitals at threatening bats
Sounds of an approaching predator inspire ultrasonic rasping in insect prey.
