News
- Health & Medicine
Parkinson’s brain surgery works in older patients, too
A surgery in which two tiny electrodes are placed in the brain improves the quality of life of patients with Parkinson’s disease, including older patients, and seems to have only short-term side effects.
- Space
Evolution, 3-D animation of Cassiopeia A
Videos chart old supernova remnant, give 3-D perspective
- Math
Mathematicians show how beetles can share a niche
New equations help solve decades-old puzzle of why one species doesn’t always outcompete another.
- Life
Rock-climbing fish caught in evolution tug-of-war
Tall is good for dodging danger, but short is better for climbing waterfalls.
- Space
This just in: Milky Way as massive as 3 trillion suns
Heftier size puts our galaxy on par with its neighbor Andromeda, implying a closer collision date. Findings also suggest Milky Way has four spiral arms.
- Space
Core of the galaxy in high-res
New high-resolution mosaic sharpens understanding of Milky Way’s turbulent center.
- Health & Medicine
Bone-growth drugs may increase jaw disease risk
New study finds link between common drug and jawbone death.
- Humans
Stone Age tools go south
Diamond-mining pits have yielded stone artifacts old enough to suggest that hand axe production started 1.6 million years ago in southern Africa, not just in eastern Africa.
- Health & Medicine
Fewer dopamine receptors makes for risky business
Brain-scanning study in people sees link between personality, dopamine system.
- Health & Medicine
Disturbed sleep tied to Parkinson’s risk
People who have a disorder that causes them to thrash and kick during sleep face a high risk of developing Parkinson’s disease or other neurodegenerative disorders.
- Agriculture
Candy cane strategy sweetens life for goldenrods
Goldenrods temporarily duck their heads during pest season
- Health & Medicine
New embryonic stem cells ratted out
Overcoming obstacles, scientists have created stable embryonic stem cells from rats. Researchers hope their method will prove useful as a general recipe for isolating stem cells from other mammals.
