World Topics

Jul 25, 2014

Legal sex work may slash HIV toll: study

Scrapping laws that ban sex work would slash the number of HIV infections over the next decade, according to a study presented at the world AIDS forum. Female sex work is one of the big vectors of the world HIV pandemic, sometimes being the ...

Jul 21, 2014

Monkey study dampens hopes for AIDS cure

The monkey version of HIV can take refuge from anti-AIDS drugs within days of entering the body, a study said Sunday — dampening hopes for a human cure. If the same holds true for human beings, treatment may have to start “extremely early” after ...

45 years after Apollo, U.S. split on lunar landings

Jul 21, 2014

45 years after Apollo, U.S. split on lunar landings

Forty-five years after the first Apollo lunar landing, the United States remains divided about the moon’s role in future human space exploration. Ten more U.S. astronauts followed Neil Armstrong and Buzz Aldrin’s July 20, 1969, visit to the moon before the Apollo program was ...

Jul 20, 2014

HIV diagnosis rate fell by third in U.S. over decade

The rate of HIV infections diagnosed in the United States each year fell by one-third over the past decade, a government study has found. Experts celebrated it as hopeful news that the AIDS epidemic may be slowing in the U.S. “It’s encouraging,” said Patrick ...

Jul 20, 2014

Study finds promise toward treating HIV and hepatitis C

A new hepatitis C drug has shown early promise in patients whose infection with both HIV and hepatitis C has made them traditionally difficult to treat, said a study Saturday. Patients were given Gilead Sciences’ sofosbuvir, a drug approved for the U.S. market in ...

Jul 20, 2014

Fruit colors evolved to please picky birds: study

Tropical Asian birds have a penchant for red and black — a proclivity that likely prompted jungle plants to sprout fruit in these colors, according to scientists. It has long been suspected that an abundance of red and black fleshy fruits in nature was ...

First U.S. cases of chikungunya mosquito virus reported

Jul 20, 2014

First U.S. cases of chikungunya mosquito virus reported

Health officials are reporting that for the first time, U.S. mosquitoes are spreading a virus that has been tearing through the Caribbean. Two people in Florida have domestically acquired chikungunya infections, officials said Thursday. In both cases, they said, a person infected with the ...

Higgs digs deeper into 'new physics' realm

Jul 19, 2014

Higgs digs deeper into 'new physics' realm

by Mariette Le Roux

Two years after making history by unearthing the Higgs boson, the particle that confers mass, physicists are broadening their probe into its identity, hoping this will also solve other great cosmic mysteries. Sifting through mountains of experimental data, they have now pieced together a ...

Sun-powered spacecraft to be launched in 2016

Jul 19, 2014

Sun-powered spacecraft to be launched in 2016

A tiny spacecraft designed to sail by the power of the sun is scheduled to launch atop a SpaceX rocket in 2016, a leading U.S. space enthusiast said July 9. The Planetary Society’s LightSail, an unmanned satellitelike craft known as a solar sail, aims ...