U.S. firm makes 'ethical' embryo stem cells

WASHINGTON (Reuters) - A Massachusetts company said on Wednesday it had developed a way to make human embryonic stem cells without harming the original embryo, a finding it said could dispel ethical objections to promising medical research using such cells. CAPE CANAVERAL, Florida (Reuters) - The U.S. spaceships that NASA wants to build to carry astronauts back to the moon will be called Orion, an agency official said on Wednesday. CALPULALPAN, Mexico (Reuters) - Skeletons found at an unearthed site in Mexico show Aztecs captured, ritually sacrificed and partially ate several hundred people traveling with invading Spanish forces in 1520.