News
- Planetary Science
Warmth in the dark age
Lower reflectivity kept Earth from freezing under a fainter young sun.
- Life
Tortoise see, tortoise do
Though they rarely meet, solitary creatures can pick up skills by example.
- Planetary Science
Signs of giant comet impacts found in cores
An uptick in ammonium may be evidence of a 50-billion-ton strike at the end of the ice age.
- Physics
LHC revs up
The world’s most powerful atom smasher achieves its most energetic collisions yet.
- Health & Medicine
Identical twins may not be so identical when it comes to gut bacteria
A new study suggests that intestinal microbe populations vary widely from one person to another.
- Life
Elephant legs bend like ‘big human limb’
Mechanics suggests the creatures are more limber than thought and use all their legs to come to a four-way stop.
- Health & Medicine
Cap or cork, it’s the wine that matters most
Comparative study finds that screw tops can perform just as well in regulating the aging process.
- Humans
Wildlife trade meeting disappoints marine scientists
The 15th meeting of signatories to the CITES treaty ended on March 25 without passing several proposals to protect high-profile fish species.
- Earth
Alternative flame retardants leach into the environment
Supposedly safer chemicals are spotted in peregrine falcon eggs in California.
-
- Physics
Bar codes could be next to check out
New radio frequency tags would use nanotechnology to identify and track products.
- Health & Medicine
Existing antibiotic might help keep wraps on AIDS virus
The acne drug minocycline inhibits HIV activation in infected immune cells, lab tests show.
