The world is not coming to an end on December 21, 2012, the U.S. space agency insisted Monday in a rare campaign to dispel widespread rumors fueled by the Internet and a new Hollywood movie.

Backers of a failed mission to launch the world's first solar-sail spacecraft unveiled plans on Monday to try again five years later with a smaller, swifter satellite to test the limits of sunlight propulsion.

Australia's koalas could be extinct in 30 years, conservationists warned Tuesday, calling for the iconic creatures to be declared an endangered species.

British scientists begin a new study on Tuesday to consider how human DNA is used in animal experiments and to determine what the boundaries of such controversial science might be.

New uses of genetic testing can help track how animal diets may change due to global warming and are helping crack down on wildlife smuggling, experts said on Saturday.

The government policy on forestation has caused one of the biggest wetlands in Asia to slowly transform into a forest, causing the number of local large birds to decrease, pointed out bird specialists, adding that these protected species may be facing a bleak future due to the forestation.

Call it video blogging for reptiles: conservationists are attaching cameras to the critically endangered Indian gharial, a crocodile-like creature, to understand more about its life in a bid to save it.

Vitaly Ginzburg, a Nobel-prize winning Russian physicist and one of the fathers of Soviet hydrogen bomb, has died in Moscow. He was 93.

Taiwan has emerged as the top winner at the 2009 Nuremberg Invention Exhibition, capturing 26 gold medals, 26 silvers and 15 bronzes, plus the coveted team championship, at the conclusion of the fair Sunday.

It may sound like a sci-fi vision, but Japan's space agency is dead serious: By 2030 it wants to collect solar power in space and zap it down to Earth, using laser beams or microwaves.