News
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AstronomyChemistry of the Cosmos: Quasars illuminate the young universe
Measuring the composition of some of the earliest structures in the universe, two teams of astronomers have unveiled new findings about star formation in the young cosmos.
By Ron Cowen -
ChemistryNanoscale Networks: Superlong nanotubes can form a grid
Researchers have made extraordinarily long carbon nanotubes and aligned them to create tiny transistors and sensors for detecting chemical and biological agents.
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Paddle Power: Surprising shape of key cellular pore unveiled
A molecular pore that controls the flow of ions into cells has an unexpected shape and mechanism.
By John Travis -
EarthSensing a vibe
A sprawling network of seismometers that covers the Los Angeles area could be adapted to provide warning of damaging ground motions from earthquakes in the seconds before those seismic vibes arrive.
By Sid Perkins -
PhysicsCrystal Bash: Shocking changes to light’s properties
Prized, light-manipulating microstructures known as photonic crystals may transform light in new and technologically tantalizing ways when jolted by shock waves.
By Peter Weiss -
AnthropologyAncestral Bushwhack: Hominid tree gets trimmed twice
In separate presentations at scientific meetings, two anthropologists challenged the influential view that the human evolutionary family has contained as many as 20 different fossil species.
By Bruce Bower -
Egg’s missing proteins thwart primate cloning
Scientists have identified a reason why cloning a person may be difficult, if not impossible.
By John Travis -
PhysicsNot even bismuth-209 lasts forever
Touted in textbooks as the heaviest stable, naturally occurring isotope, bismuth-209 actually does decay but with an astonishingly long half-life of 19 billion billion years.
By Peter Weiss -
EarthHarbor waves yield secrets to analysis
New findings by ocean scientists may help port officials in Rotterdam, the Netherlands, predict potentially destructive waves in the city's harbor.
By Sid Perkins -
TechTipping tiny scales
A prototype detector based on a tiny silicon cantilever that operates in air has achieved a 1,000-fold sensitivity boost when measuring tiny quantities of chemical agents.
By Peter Weiss -
Planetary ScienceRoving on the Red Planet
NASA last month selected the landing sites for rovers scheduled to begin exploring the Martian surface next January.
By Ron Cowen -
EarthSeismic waves resolve continental debate
New analyses of seismic waves that have traveled deep within Earth may answer a decades-old question about the thickness of the planet's continents.
By Sid Perkins