Researchers Report 'Missing Link' AIDS Breakthrough

Scientists believe they have found a "missing link" in the evolution of the virus that causes AIDS explaining why the infection does no harm to most monkeys and the one that kills millions of people.

Scientists: Humans Naturally Glow in the Dark

The human body literally glows, emitting a visible light in extremely small quantities at levels that rise and fall with the day, scientists now reveal.

Huge Dust Cloud Circled World in 13 Days

A gigantic cloud of dust that originated in China's western deserts made its way around the world in 13 days, a new study reports.

Propofol the Focus of Raid on Dr. Conrad Murray's Office

A lawyer for Jackson's doctor says police were searching the clinic for evidence of manslaughter

Famed Tortoise Gets New Chance at Fatherhood

Ecuadorean officials say there's new hope that famed Galapagos giant tortoise Lonesome George, believed to be the last of his species, could soon be a father.

'Decapitating' Flies Used to Create 'Zombie' Fire Ants

Researchers deploying parasitic flies that lay eggs in fire ants; larvae then move into ant's head and digest it until head falls off.

Exposed: Repair Shops Hack Your Laptops

Technicians caught stealing passwords, trying to hack into bank accounts, viewing personal data and overcharging for nonexistent repairs.

Source: 'Disturbed' Missing Texas Soldier Has Called

A person who claims to know a missing Texas soldier raised questions about his mental state Wednesday, saying Pfc. James Gonzalez is 'disturbed' and has called him several times since his disappearance last week.

Obama Makes It Personal

President is banking on prime-time personal pitch to convince Americans to back immediate passage of his $1 trillion-plus health care overhaul package | VIDEO

Air Problem Cuts Short Wednesday Spacewalk

Two astronauts are safely back inside the international space station after cutting short their spacewalk because of a suit problem.