News
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SpaceHeavyweight galaxies in the young universe
New observations of full-grown galaxies in the young universe may force astrophysicists to revise their leading theory of galaxy formation, at least as it applies to regions where galaxies congregate into clusters.
By Ron Cowen -
PhysicsSpin control for technology
Long-lived helix offers a new way to keep electron spin stable and in sync
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SpacePlanet hidden in Hubble archives
A new way to process images reveals an extrasolar planet that had been hiding in an 11-year-old Hubble picture.
By Ron Cowen -
MathChicks do arithmetic
Using the natural inclination of young chickens to cluster in large groups, researchers show that the birds are hatched with a numerical sense.
By Susan Milius -
LifeGenes help monarchs migrate
At least 40 genes help monarch butterflies find their way to overwintering sites in Mexico.
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Health & MedicineParasites hinder immunity against cholera
Harboring intestinal parasites seems to limit a person’s ability to fend off cholera, a new study conducted in Bangladesh shows.
By Nathan Seppa -
LifeLouse-y genome surprise
Blood-sucking body lice have an odd arrangement of mitochondrial genes.
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Health & MedicineAutism immerses 2-year-olds in a synchronized world
By age 2, kids with autism focus on synchronized physical events, such as a person’s moving lips accompanied by sounds, rather than on eye movements and other social cues, a new study suggests.
By Bruce Bower -
LifeDissing a loaded label for some unicellular life
Prominent biologist calls ‘prokaryote’ outdated term.
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EarthTallying emissions in ports and at sea
Ships are major contributors to acid rain and ground-level ozone concentrations in some parts of the world.
By Sid Perkins -
SpaceIce cubes in space
Planetary scientists have determined the composition and orbits of two moons at the fringes of the solar system, finding that the bodies were created when an impactor struck the dwarf planet that they now orbit.
By Ron Cowen -
Health & MedicineHow herpes re-rears its ugly head
Researchers identify a key player in the reactivation of herpes simplex virus type 1.