Spring has sprung — and in many parts of the world, you can smell it. The air might smell sweeter, with notes of budding florals and pollen. But there are complex parts of the scent, too, more ...

How did cells evolve a process to end their own lives? Recent research suggests that apoptosis, a form of programmed cell death, first arose billions of years ago in bacteria with a primitive ...

Even now, decades after we first began trying to avert the worst of global warming, more than 80% of the world’s total energy comes from fossil fuels. You might think this would make fossil fuel ...