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The space shuttle Atlantis is back home after a 13-day mission to the International Space Station. Atlantis touched down at the Kennedy Space Center in Florida at 9:07 a.m. Wednesday.

Researchers have successfully turned one bacterial species into another using DNA transplantation. Such "genome transplants" set the stage for creating synthetic life from scratch — a feat that may not be far away.

The 8 X 8 Glasses of Water Myth

A lot of the information pharmacies provide patients about their prescriptions is too long and chock-full of medical jargon and legalese, according to a new study. The Food and Drug Administration wants to make patient information more user-friendly.

A husband-and-wife contracting team pleaded guilty today to paying married warfare systems officials thousands of dollars to land government contracts for their company, the U.S. Attorney's Office announced.

Coral reefs may all smell the same to humans. But to some fish, reefs' smells have distinct qualities — even when they're several hundred miles away. A new study in the Proceedings of the National Academy of Sciences argues that some reef fish use smelly ocean currents like New Yorkers use their subway lines — as the quickest way home.

What can the military do to improve its abilities to identify combat stress, and treat troops returning home from a war zone? We speak to the director of the Naval Center for Combat and Operational Stress Control in San Diego about the challenges servicemembers face when they return home from deployment.

The bdelloid rotifer, a tiny invertebrate, hasn't had sex for 30 million years — and you thought you had a long dry spell. But species that reproduce asexually don't usually last very long, so the big question is how the rotifer has gone without it for millennia. Scientists at the University of Iowa think they have an answer.

Public health officials are confident that the new H1N1 vaccine is safe. Still, as with any vaccine, they have systems in place to monitor vaccine recipients in order to spot any potential problems.

How do we manage information and privacy in the electronic age? As part of our monthly segment on ethics in science and technology, we'll explore how our information is tracked, used and protected.