Uncategorized
- Chemistry
Scaffolding props up failing hearts
Hydrogel treatment stimulates cell repair and blood vessel regrowth in pig experiments.
- Humans
New fossils hint at ancestral split
Jaw and face bones suggest two Homo species lived in East Africa nearly 2 million years ago.
By Bruce Bower - Health & Medicine
Thinner isn’t always better in diabetes
Normal-weight people who develop diabetes have higher mortality than people who are overweight or obese at the disease’s onset
By Meghan Rosen - Planetary Science
Wheels down, Mars rover takes in the view
After a safe landing, NASA’s Curiosity begins transmitting images back to Earth.
By Nadia Drake - Humans
North African Diaspora written in genes
DNA analysis of people from 15 groups identifies distinct groups and migrations.
- Health & Medicine
Monkey brains sensitive to others’ flubs
Some of the brain’s nerve cells are programmed to light up only upon witnessing another’s error.
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- Neuroscience
When evaluating textbook dogmas about the brain, keep an open mind
When evaluating textbook dogmas about the brain, keep an open mind.
- Planetary Science
Curiosity lands safely on Mars
Lowered by sky crane onto the surface, NASA rover prepares to look for signs that life could have evolved on the Red Planet.
By Nadia Drake - Earth
Extreme hot spells rising
Analyzing six decades of temperature records reveals inexorable warming and increasing episodes of extreme heat.
By Janet Raloff - Earth
Greenland enters melt mode
This year’s record-breaking island-wide thaw punctuates an ongoing warming trend.
- Life
How the elephant gets its infrasound
Just blowing air through a pachyderm’s larynx produces fundamental elements of the mysterious rumblings that send messages too low for people to hear.
By Susan Milius