Stem Cells

What are they, and how do we find a balance between hope for cures and respect for life?

Should We Allow Cloning for Stem Cell Research?

In this interactive poll, explore arguments for and against, then vote online.

The Cloning Process

Microphotographs show step-by-step how scientists create embryonic stem cells. See the slide show—or go to the printable version.

An Alternative to Cloning

Unfertilized egg cells that spontaneously develop into blastocysts offer a new approach to stem cell research.

The Politics of Stem Cells

In this 4.13.05 dispatch, development producer Kyla Dunn explores the legislative landscape of stem cell research.

Related Science News

Find recent stories on stem cell research.

Ask the Expert

Harvard researcher Leonard Zon answers viewer questions about stem cell science.

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© | Created April 2005