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The Life Cycle of Galaxies

Astronomers are on the verge of explaining the enigmatic variety of galaxies

By Guinevere Kauffmann and Frank van den Bosch


Microelectronic devices that function by using the spin of the electron are a nascent multibillion-dollar industry--and may lead to quantum microchips

By David D. Awschalom, Michael E. Flatté and Nitin Samarth

Hope in a Vial

Will there be an AIDS vaccine anytime soon?

By Carol Ezzell

Disturbing Behaviors of the Orangutan

Studies of these great apes show that some males pursue an unexpected and disquieting evolutionary strategy

By Anne Nacey Maggioncalda and Robert M. Sapolsky


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