Scientific American Magazine

From orbit around Jupiter, the Galileo spacecraft will take the closest look ever at the planet and its natural satellites

The genetic defects underlying this lethal disease have now been shown to eliminate or hobble a critical channel through which a constituent of salt enters and leaves cells

The famous tower has been tilting since the 12th century. Now engineers are using 20th-century technology in hopes of saving the ancient landmark

The danger of a very large earthquake striking the coast between northern California and British Columbia proves much greater than suspected

Some of the molecules and cells in human milk actively help infants stave off infection

Neuroscientists and others are at last plumbing one of the most profound mysteries of existence. But knowledge of the brain alone may not get them to the bottom of it

Cryptography gives people the ability to authenticate the identity of their correspondents, the first step in establishing trust

U.S. military planners hope to rely on improved versions of the technologies tested in the Gulf War to help fight the next Saddam Hussein. They may be preparing for the wrong conflict