Deemed, "the most controversial breakthroughs ever made in the field of stem cell science."  This technique of bringing dead embryo cells and turning them into living tissue is of great ethical debate.

This should get round opposition to stem cell science because live embryos will no longer need to be used in all experiments," said Professor Miodrag Stojkovic, the researcher who carried out the experiments at the Centre for Stem Cell Biology at Newcastle University last year.

   The question arises of exactly when an embryo is considered dead.

   Stem cells are hopeful in development of treatments for such diseases as Parkinson's, Alzheimer's, heart disease, diabetes, and others.