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  1. Potent Promise: Back to the Womb

    Reverting adult cells to an embryonic state without creating embryos is a tricky business.

    By Patrick Barry
  2. Earth

    Ice spy

    Radar altimeters on Earth-orbiting probes can detect and count small icebergs even under cloudy skies, providing warning to ships and invaluable data for scientists monitoring climate change.

    By Sid Perkins

  3. Science Future for August 30, 2008

    September 14 Secrets of the Dinosaur Mummy premieres on the Discovery Channel. Visit http://www.dsc.discovery.com October 5–9 International Banana Conference in Mombasa, Kenya. Visit http://www.banana2008.com October 18 Climate Change: the threat to Life and Our Energy Future opens at the American Museum of Natural History in New York City.