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 ...

Pocock, a space scientist at University College London and BBC presenter, predicts alien life will be found by 2075 but likely as 'grey sludge' ...

Life may not get blasted off any of the known "super-Earth" worlds as readily as it can from our planet, scientists find. The discovery suggests that any intelligent aliens that develop on such ...