Humanity may be one step closer to finally answering the question of whether we're alone in the cosmos with a definitive "no." A team of astronomers said it has found signs of what could be ...

Astronomers raised hopes that humanity might not be alone in the universe by announcing on Thursday they have detected the most promising hints yet of life on a distant planet.

The more we learn about how the universe forges its heaviest elements, the closer we get to answering the biggest question of all: Are we alone?