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PaleontologyFeathered fossil still stirs debate
More than 2 years after scientists first described 120-million-year-old fossils of a feathered animal, a new analysis seems to bolster the view that the turkey-size species was a bird has-been and not a bird wanna-be.
By Sid Perkins -
AstronomyTelescope takes close-ups of distant star
Radio astronomers have for the first time probed ejected gas in the immediate surroundings of a distant star.
By Ron Cowen -
PhysicsAnswer blows in wind, swirls in soap
A swirling soap film gives new clues to how turbulent flows, such as the circulation of Earth's atmosphere, squander their energy.
By Peter Weiss -
Older isn’t wiser in moral reasoning
Researchers find more endorsement of immanent justice, the belief that the natural world punishes human misdeeds, among college students than sixth-graders.