Stem Cells Breakthrough

Three separate teams overcome a biomedical hurdle—creating stem cells without the use of human embryos.

Stem Cells Poll

Should we create embryonic stem cells through cloning?
Results to date:
64% Yes
22% No
14% Undecided

Ask the Expert

George Daley of Children's Hospital Boston answers viewer questions about stem cell research.

Video Extra

Enjoy a musical ditty about the three types of tissues stem cells can become.

Related Science News

Find recent stories on stem cell research.

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© | Created July 2008