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Cosmic Log: The universe in your head

Science editor Alan Boyle's Weblog: Stem cell pioneer Robert Lanza generates controversy on a whole different plane with "Biocentrism," a book that lays out his theory of everything.

Usefulness of animal-human embryos doubted

It may be futile to try producing stem cells by putting human DNA into cow or rabbit eggs and making hybrid cloned embryos, a strategy that has triggered controversy, a study says. Full story

Embryos survive stem cell harvest

A company that devised a way to make embryonic stem cells without harming human embryos Thursday urged President George W. Bush to endorse the technique. Full story

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Robert Lanza
Robert Lanza

Robert Lanza is Advanced Cell Technology's chief scientific officer.