The research is mounting up that we might not be alone in this big wide world. So what's the likelihood that aliens are out ...

The search for alien life in the universe has fascinated the scientific community for decades – and the chances of finding intelligent life out there in the cosmos just got more likely, according to a ...

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

From the physical world to the biological universe: Democritus to Lowell -- Plurality of worlds and the decline of anthropocentrism -- Life in the solar system: the limits of observation -- Planetary ...