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PaleontologyDino domination was in the cards, maybe
A new study finds that early dinosaurs coexisted with and were outnumbered by a competing species. Dinosaurs eventually reigned supreme anyway, but perhaps not because they were better.
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SpaceBlast from the past poses puzzle
New observations suggest that the brilliant outburst of a hefty star that first wowed observers in the 1840s could be signs of a new, exotic type of stellar explosion.
By Ron Cowen -
SpaceBrightest gamma-ray burst
A bit of luck helps astronomers detect the most luminous object ever recorded from Earth.
By Ron Cowen -
Health & MedicineGood day care grime
A study of 952 children in Manchester, England, suggests that children going to day care starting at age 6 months could be less likely to develop asthma later.