Critiques prompt researchers to offer samples of poison-tolerant microbe to doubters.

Erika Check Hayden

At first, it sounded like the discovery of the century: a bacterium that can survive by using the toxic element arsenic instead of phosphorus in its DNA and in other biomolecules ( Read more... )

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Droves of patients are heading overseas for stem-cell therapies unavailable in the U.S. Is it a dangerous scam -- or is America just behind the curve?


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Oprah and Alan Ball are in talks to produce a movie about Henrietta Lacks, source of the HeLa cell line. HBO recently announced that they have acquired the rights to the book "The Immortal Life of Henrietta Lacks" by Rebecca Skloot.
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HeLa cells are an immortal cell line that have been used in medical research (polio, AIDS, ( Read more... )