7,733 results
- Planetary Science
Muddying the Water? Orbiter drains confidence from fluid story of Mars
New images of Mars diminish the evidence that liquid water has flowed on some parts of the planet, but bolster the case in other places.
- Humans
Letters from the September 1, 2007, issue of Science News
Risk reversal? “Diabetes drug might hike heart risk” (SN: 6/23/07, p. 397) reports 86 heart attacks among 15,560 rosiglitazone (Avandia) users, versus 72 others in a control group of 12,283. A study coauthor then says that “after statistical adjustment, that yields a 43 percent higher risk of heart attacks among rosiglitazone users.” Simple arithmetic would […]
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From the October 16, 1937, issue
Biological prospecting on two remote mesas near the Grand Canyon, a newly described and widespread form of meningitis, and primate fossils from the Crazy Mountains of Montana.
- Humans
Letters from the August 25, 2007, issue of Science News
Where did the chicken cross? “Chicken of the Sea: Poultry may have reached Americas via Polynesia,” (SN: 6/9/07, p. 356) states, “The most likely sea route ran north of Hawaii and down America’s Pacific coast.” The Polynesians were master mariners, so anything is possible, but continuing east from Tonga to South America is an extension […]
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Barely Alive: Ancient bacteria survive in the slow lane
Microbes locked in 500,000-year-old permafrost appear to breathe and show other signs of very slow life.
- Humans
From the December 18 & 25, 1937, issues
The infinite variety of snowflakes, making Java Man human, dinosaurs on the battlefield, Santa Claus in stone, filling empty space, and science progress in 1937.
- Paleontology
Back from the Dead?
The long-term disappearance of creatures from the fossil record and their later reemergence can provide insights into ancient environmental conditions and the trustworthiness of the fossil record itself.
- Earth
Drug Overflow: Pharmaceutical factories foul waters in India
A treatment plant in India that processes waste from drug factories feeds enormous amounts of antibiotics and other drugs into local waterways.
- Humans
From the July 3, 1937, issue
A spectacular freak photograph of a solar eclipse, meteorites as the remnants of lost planets, and inducing dropsy in animals.
- Earth
Freeze-thaw cycles: How not to mix soil
The repeated cycles of ground freezing and thawing that occur in many places don't do a surprising poor job of churning the soil.
- Earth
Natural Hazards
The U.S. Geological Survey has launched a new Web site about the threat of natural disasters. It provides seven easy-to-understand fact sheets on earthquakes, floods, hurricanes, landslides, tsunamis, volcanoes, and wildfires. The site also highlights resources and information available from the USGS and provides links to individual hazards Web pages for more detailed information. Go […]
- Animals
Den Mothers: Bears shift dens as ice deteriorates
As Arctic ice has dwindled, pregnant polar bears in northern Alaska have become more likely to dig their birthing dens on land or nearshore ice than on floating masses of sea ice.
