News
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Materials ScienceWhisking Whiskers: Nanobrushes sweep up
Researchers have made microscopic brushes with carbon nanotube bristles.
By Peter Weiss -
EarthWetland Blanket: Volcanic sulfates may curb methane emission
Field studies hint that the deposition on wetlands of sulfate compounds from the atmosphere could temporarily stifle those regions' natural emissions of methane.
By Sid Perkins -
HumansUsing one’s head
Porters in Nepal turn out to be the most efficient human load carriers yet recorded, carrying burdens that average 93 percent of their body weight.
By Susan Milius -
Health & MedicineNo Sugar Babies: Study suggests treating gestational diabetes
Women with gestational diabetes who receive dietary counseling, regular blood sugar monitoring, and insulin as needed lessen their risk of birth complications.
By Nathan Seppa -
Smoking’s Reward: Nicotine triggers opiate-pleasure response
A study of mouse brains suggests that nicotine works via the same pathways that give morphine and other opiates their addictively rewarding qualities.
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ArchaeologyAncient Glassmakers: Egyptians crafted ingots for Mediterranean trade
New archaeological finds indicate that by about 3,250 years ago, Egypt had become a major glass producer and exporter.
By Bruce Bower -
Health & MedicinePreventing PMS: Vitamin and mineral let women avoid syndrome
Ample calcium and vitamin D in the diet prevent premenstrual syndrome in some women.
By Ben Harder -
Planetary SciencePlanet Hunt Strikes Rock: Hot kin of Earth orbits nearby star
Astronomers have found the closest known cousin to Earth, a solid world just 15 light-years beyond the solar system.
By Ron Cowen -
AstronomyMaking waves
Locked in a deadly embrace, two white dwarf stars may be the strongest source of gravitational waves now flooding our galaxy.
By Ron Cowen -
AstronomyThe supernova that wasn’t
A brilliant stellar outburst once thought to be a supernova explosion actually left the star intact.
By Ron Cowen -
AstronomyAndromeda gets bigger
A new study reveals that the diameter of the Andromeda galaxy's disk spans some 220,000 light-years, three times as big as had been estimated.
By Ron Cowen -
PaleontologyNewfound dinosaur wasn’t sticking its neck out
Fossils of a new, 10-meter-long sauropod species excavated in South America suggest that, unlike most of its massive kin, the creature had a relatively short neck.
By Sid Perkins