World Topics

Solar plane passes third test ahead of planned world tour

A solar-powered plane completed its third test flight in the United Arab Emirates on Monday ahead of a planned round-the-world tour to promote alternative energy. Organizers hope the Solar Impulse 2 will begin the voyage as early as Saturday but caution the launch will depend on the weather, even in ...

Mar 2, 2015

Deadly bacteria released from U.S. high-security lab

U.S. officials in Louisiana are investigating how a dangerous and often deadly bacteria got out of a high-security laboratory at a research facility, USA Today reported on Sunday. Authorities told the newspaper there was no risk to the public, though the extent of the ...

Sierra Leone's vice president goes under Ebola quarantine

Mar 2, 2015

Sierra Leone's vice president goes under Ebola quarantine

Sierra Leone’s vice president has put himself in quarantine following the death from Ebola of one of his security guards. Vice President Samuel Sam-Sumana is set to become acting president later Sunday when President Ernest Bai Koroma leaves Sierra Leone to attend a European ...

U.S., Liberia kick off trial of Ebola drug ZMapp

Mar 2, 2015

U.S., Liberia kick off trial of Ebola drug ZMapp

U.S. and Liberian researchers have started a clinical trial to test the safety and effectiveness of Mapp Biopharmaceutical Inc.’s Ebola drug ZMapp, an experimental treatment that has already been tried in a handful of Ebola patients, including two U.S. missionaries. The trial, a joint ...

China's wild panda population rises nearly 17%

Mar 1, 2015

China's wild panda population rises nearly 17%

The number of wild giant pandas in China jumped nearly 17 percent over a decade, state media cited an official survey as showing, with a government agency crediting conservation measures for the increase. The investigation by the State Forestry Administration found that by the ...

UV exposure damages skin after sunset

Feb 28, 2015

UV exposure damages skin after sunset

Significant ultraviolet radiation damage to skin can still occur hours after its exposure to sunlight, scientific researches have determined. Exposure to sunlight or tanning lamps can damage DNA in melanocytes, the cells that pigment skin by producing melanin which gives skin its color, and ...

Feb 28, 2015

Animal body sizes tend to increase in over time

by Will Dunham

Renowned 19th-century American paleontologist Edward Drinker Cope proposed “Cope’s Rule,” hypothesizing that animal lineages tend to increase in body size over time. The dinosaur fossils he dug up in the American West seemed to bear this out. However, Cope was not infallible. In a ...

Compound from Chinese medicinal herb shows promise for Ebola

Feb 27, 2015

Compound from Chinese medicinal herb shows promise for Ebola

A drug derived from a Chinese medicinal herb is showing promise for combating Ebola infection, effectively imprisoning the virus inside cells so it cannot do its usual damage, scientists said on Thursday. The researchers said the compound, called tetrandrine, blocked infection of human white ...