The cloning of human embryos by South Korean researchers has reignited debate about how to regulate human cloning. No reputable scientist wants to make artificial babies. But, there is heated ...

When Dolly the sheep – the first cloned mammal – was born 30 years ago, she became one of the most famous animals in science ...

SAN FRANCISCO -- Just a few years ago, Michigan State University scientist Jose Cibelli was considered the leading expert on cloning human embryos to treat and study disease. Now, there's no debate ...

When Dolly the sheep—the first cloned mammal—was born 30 years ago, she became one of the most famous animals in science ...

Stanford University announced yesterday it would create an institute to develop medical therapies from human embryonic stem cells, the promising but controversy-laden cells found inside human embryos.

correctionA Feb. 9 article incorrectly referred to Richard Doerflinger of the U.S. Conference of Catholic Bishops as the organization's director of abortion-opposition activities. Doerflinger's title ...

Last week, while the 15th Marine Expeditionary Unit was deployed in southern Afghanistan, researchers from Advanced Cell Technology in Worcester, Mass., announced that they had achieved the first ...

LINCOLN, Neb. (AP) -- The emotion, tumult and acrimony over human cloning, stem-cell research and abortion were compressed into one small meeting room Thursday in the Capitol. Dozens of people packed ...

Stepping into a research area marked by controversy and fraud, Harvard University scientists said Tuesday they are trying to clone human embryos to create stem cells they hope can be used one day to ...