(CNN) -- A human embryo, containing about a couple hundred cells, is smaller than the period at the end of a sentence. Scientists need strong microscopes to see these precursors to life, and to take ...

The news that U.S. scientists have successfully cloned a human embryo seems almost certain to rekindle a political fight that has raged, on and off, since the announcement of the creation of Dolly the ...

But we have also learned something else: Over one-third of the House of Representatives believes that corporations and researchers—like Advanced Cell Technology in Worcester, Massachusetts, which has ...

LONDON — Britain granted its first license for human cloning Wednesday, joining South Korea on the leading edge of stem cell research, which is restricted by the Bush administration and which many ...

(CNN) — Here is some background information about stem cells. Scientists believe that stem cell research can be used to treat medical conditions including Parkinson’s disease, spinal cord injury, ...

THE SENATE will shortly take up one of the most pressing moral, ethical, and scientific issues of our time: the Brownback proposal to outlaw human cloning. Two alternative proposals would ban only ...

Two groups at Harvard University have announced that they have received approval to start human-cloning research designed to create lines of embryonic stem cells to study and treat diseases. “We are ...

VATICAN CITY (Reuters) - A Vatican bioethics document Friday condemned artificial fertilization and other techniques used by many couples and also said human cloning, "designer babies" and embryonic ...

(CNN) — Here's some background information about cloning, a process of creating an identical copy of an original. Facts: Reproductive Cloning is the process of making a full living copy of an organism ...

An entirely appropriate stew of scientific vexation and mortification has accompanied revelations that the incredible Korean achievements in human embryonic cloning and stem cell research are exactly ...