Scientists propose a simple but powerful new method for detecting traces of alien biology, whether on Jupiter's icy moons, in ...

Imagined planets, ecosystems and creatures show how diverse alien biology could become.

DNA may be the blueprint for life on Earth, but the deeper scientists look, the less certain it seems that the rest of the universe has to follow the same rules. From RNA worlds and synthetic genetic ...

A nutrition scientist applies metabolism, biology and food science to one of science fiction's oldest questions.