News
- Astronomy
Red giants map how the Milky Way grew
A new catalog of the ages of our galaxy’s stars confirms that the Milky Way grew from the inside out.
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- Life
Body’s bacteria don’t outnumber human cells so much after all
New calculations show human cells about equal bacteria in the body.
- Earth
Ground shakes expose faraway earthquake hot spots
A major earthquake in Costa Rica revealed faraway areas where fluids have weakened rock and boosted the risk of a major earthquake, new research suggests.
- Astronomy
To search for an advanced civilization, take a U-turn to star clusters
Globular star clusters might be safe, stable homes for long-lived advanced civilizations.
- Genetics
The Iceman tells a new tale: Infection with ulcer-causing bacteria
Ötzi the Iceman was infected with a virulent strain of H. pylori. A new study is the first to piece together an ancient genome of these bacteria.
- Oceans
Phytoplankton flunk photosynthesis efficiency test
Nutrient-poor ocean waters make phytoplankton photosynthesis inefficient
- Paleontology
Saber-toothed salmon teeth more like tusks than fangs
Saber-toothed salmon teeth may not have been positioned like fangs at all.
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- Astronomy
Black hole burps up gobbled gas and dust
Two belches from a supermassive black hole are drifting away from another galaxy.
- Psychology
Kids grasp words as symbols before learning to read
Preschoolers grasp that written words refer to specific things before they learn to read.
- Climate
Arctic passageways let species mingle
People aren’t the only animals likely to use passages that open up as the Arctic melts.
