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AstronomyTelescope finds tiny moon of Jupiter
Astronomers reported the discovery of Jupiter's 17th known moon, the first Jovian moon discovered in 25 years and perhaps the tiniest known satellite of any planet.
By Ron Cowen -
Mom, is that you? Seals show family recall
Researchers found that northern fur seal mothers and offspring in Alaska remember and respond to each other's calls for as long as 4 years, the first demonstration of such long-term recall in a mammal species other than humans.
By Ruth Bennett -
Study of stimulant therapy raises concerns
A community survey in North Carolina indicates that many children receiving stimulant treatment don't have attention-deficit hyperactivity disorder.
By Bruce Bower -
PhysicsMatter’s Missing Piece Shows Up
The first direct evidence of the tau neutrino, the last of the 12 subatomic particles considered the fundamental building blocks of matter, has finally been found.