Kepler-452b revolves around a sun much like our own.
June 21, 2004|
FINE LINESThom Graves MediaThe ethical dimension of assisted reproduction cannot be divorced from the science, as was illustrated by two seemingly contradictory decisions by the United Kingdom's Human Fertilization and Embryology Authority. The HFEA approved an application for use of preimplantation genetic diagnosis (PGD) for a couple that had an existing child with Fanconi anemia. They wished to conceive a second child, both free of the disease and HLA compatible with the first. Stem cells tak