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SpaceCeres may be an asteroid impersonator
The largest asteroid in the solar system may not be an asteroid at all but a cometlike relative of Pluto that came in from the cold several billion years ago.
By Ron Cowen -
SpaceCentral star is no dim bulb
Observing the dusty center of the Milky Way, astronomers have the second brightest star known in the galaxy
By Ron Cowen -
Health & MedicineAsthma oddity
Helicobacter pylori, a common microbe that colonizes the stomach, might protect against asthma.
By Nathan Seppa -
LifeYoung tasmanian devil moms
Tasmanian devils have started mating much earlier in response to an epidemic, called facial tumor disease, that is wiping out much of their population.