Science shows that safeguarding the climate will require us to leave most fossil fuels in the ground. Can we restrain ourselves?
Slower warming than predicted gives the world time to develop better energy technologies
A dozen quasars in the early universe appear to have shut down in just a few years, baffling astronomers
The cause of migraine headaches has eluded scientists for centuries. Now a theory blaming one nerve has led to drugs that prevent attacks
What genetic oddities does rock's Prince of Darkness and beheader of bats have entangled deep in his genetic code? Knome, the company that analyzed Ozzy's full genome, divulges some of the details in a Q&A
Black isn't the new green
World leaders at the U.N. climate conference are trying for the 21st time to limit greenhouse gas emissions. Here's how they can finally reach meaningful agreements
Pets and people shed clouds of microbes as unique and personal as their fingerprints, but the clouds can change over time.