Some have declared the research to be morally repugnant. Others have said scientists have been wildly optimistic in their promises of how treatments may help patients.
By PBS NewsHour
Researchers in South Korea succeeded in extracting stem cells from a cloned human embryo.
The National Institutes of Health has released a list of the laboratories that hold the 64 lines of human embryonic stem cells eligible for federal funding.
The National Institutes of Health released a study today underscoring the tremendous potential of embryonic stem cells to treat everything from Alzheimer's disease to cancer.
Scientists in Virginia are the first in the world to harvest human embryos for the sole purpose of using the stem cells for research.
Support Provided By: Learn more
Educate your inbox
Subscribe to Here’s the Deal, our politics newsletter for analysis you won’t find anywhere else.