New study helps explain why flu is more contagious under wintry conditions

Racial comments lead to widespread condemnation of Nobelist

Restrictions acceptable for some unclassified research, says academy panel

Panicky pachyderms sniff out threatening humans

Neandertals shared a key speech gene with humans

Blue-light-sensing proteins help keep spawning corals on time and in sync

A thin tectonic plate could explain India's forceful collision with the rest of Asia

Researchers identify brain cells responsible for rousing us from sleep

Subsistence fishing may rival threat from industrial fishing, study in Baja shows

New vaccine defends babies against the tropical killer

Foreign crabs have done more harm to each other than to the habitat they infiltrated

When evaluating someone's character, people believe gossip rather than other information

2007 winners lauded for pioneering work on designing economic rules to reach a desired end

Committee honors efforts to spread global awareness of climate change

Brightest blast from the past yet throws a kink in stellar explosion theory

Single protein may explain why 1918 virus was so deadly

More precise distancing of the nebula's young stars will shed light on solar evolution

Canadian cancer researcher will lead Global HIV Vaccine Enterprise

Rules aim to ensure iron fertilization experiments don't damage ocean ecosystems

German scientist honored for work on surface chemistry

Cores drilled from an African lake hint at hard times for early humans

Prize recognizes gene-targeting in mice

Christian Bréchot steps down, pursues fight with a company he co-founded

Physicists honored for work that revolutionized computer hard drives