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.

SEATTLE - In a clash of politics and science, the first successful cloning of a human embryo - and the extraction of stem cells from it - has ignited new calls for a ban on all forms of human cloning ...

JEFFERSON CITY, Mo. -- Missouri's battle over embryonic stem-cell research intensified Wednesday as a new group proposed a ballot measure seeking to outlaw a particular research method that voters ...

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 ...

(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 ...

JEFFERSON CITY, Mo. -- Hundreds of opponents of embryonic stem-cell research crammed the Capitol halls Wednesday urging a statewide election on whether to overturn a voter-approved constitutional ...