News
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Among stars, heavyweight champ
Stellar record-holder weighs in at 265 times mass of sun.
- Paleontology
Oldest dog debated
A fossil jaw may, or may not, come from the oldest known example of man’s best friend.
- Planetary Science
Hole from on high
Researchers discover a fresh meteorite impact crater using Google Earth.
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- Animals
Fearless tadpoles give invaders the edge
Clueless larvae don’t heed the scent of nonnative turtles, giving newcomers an edge over native species, a European study finds.
- Health & Medicine
Diet and behavior changes may slow Alzheimer’s
A new study in dogs finds that antioxidants and enriched lifestyle can ward off symptoms, and suggests brain plaques may not be the cause of the disease.
- Health & Medicine
Separating wheat from chaff in celiac disease
Three partial proteins may trigger the T cell immune reactions that cause the symptoms of this intestinal ailment, new research shows.
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- Health & Medicine
Taking some of the doubt out of IVF
Testing shows that a complex array of factors can be used to calculate the probability of in vitro fertilization success better than just using woman’s age as a guidepost.
- Health & Medicine
Gel shows promise against HIV
Scientists have developed the first topical treatment that can prevent HIV infection among women.
- Life
Stuck in the past
Reprogrammed stem cells retain molecular memories of their former identities, two new studies show.
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