NASA has taken a bold step in the search for alien life beyond Earth. The space agency announced the selection of seven ...

What planet is most like Earth? Reseachers have identified several exoplanets similar to our planet, but none that are an ...

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 ...

One of the most promising Earth-sized exoplanets may be far more barren than its early billing suggested, with new analyses pointing to a rocky world stripped of the protective gases that make a ...

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 ...