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A stroke of colossal misfortune (and a giant asteroid) may have killed dinosaurs 66 million years ago
National Academy of Sciences finds nuclear operators in Japan and U.S. fail to plan for extreme events
Lizards were sent into orbit as part of study into effects of weightlessness on sexual intercourse
Study shows declines in HIV diagnoses across race, gender and IV drug users but an increase among gay and bisexual men
How cord blood, stem cells and progenitor cells are the next frontier of innovative therapies.
Unconfirmed reports say up to 100 people on board the Boeing 777 were en route to Australia for the conference
Our executive producer on making a special episode, and protecting his daughter's future.
Researchers hope that genetically reprogramming defective heart cells could eliminate need for electronic pacemakers
The largest flying 'microraptorine' of its kind found in China was among the feathered reptiles that preceded birds
Researchers at Duke University harvest stem cells from umbilical cord blood.