Scientists in Oregon have achieved something that many thought might be impossible. They said Wednesday that they have cloned human embryos and then harvested the embryo's stem cells. The discovery, ...

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For some time, scientists have been able to craft precise genetic copies of many creatures. Whether they are animals, or single cells, they are similarly referred to as clones. For various technical ...

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 ...

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.

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 ...

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 ...