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AstronomyDisks of Dust: Planet-stuff surrounds other sunlike stars
Two orbiting observatories for the first time are homing in on planetary debris circling sunlike stars.
By Ron Cowen -
Cloning Milestone: Monkey embryos urged to stem cell stage
Researchers have coaxed cloned rhesus macaque embryos to grow to the blastocyst stage, the furthest point yet reached in cloning a nonhuman primate.
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ArchaeologyChina’s Fermented Past: Pottery yields signs of oldest known wine
Analyses of ancient pottery have yielded evidence the people living in northern China 9,000 years ago concocted a fermented, winelike drink from rice, honey, and fruit.
By Bruce Bower -
Mice smell a mate’s immune system
By sniffing molecules present in urine, mice gain insight into each other's immune systems.