Dark trickles on Martian slopes during the planet’s warm months suggest salty water on Mars, according to a report in the journal Science.
Doctors at Harvard Medical School and the University of Southern California are going public to seek new cases of a mysterious, life-threatening blood disease in hopes of finding clues toward a cause and a cure.
The number of new HIV infections has surged among young, black homosexual males even as the overall spread of the virus that causes AIDS stabilized, the Centers for Disease Control and Prevention said.
People who live 95 years or more are as likely as the rest of the population to smoke, drink and eat an unhealthy diet, suggesting their survival to that ripe age is based on genetics and not lifestyle, researchers found.
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