If the universe is full of habitable worlds, where is everybody?” A viral Reddit thread reignited the debate, mixing alien life theories with sharp critiques of humanity’s cosmic worth.

Lacki suggests detecting the combined glow of the emissions of several civilizations. It’s an approach that comes with its ...

As it turns out, the cute, stylish visuals are the most comforting part of their latest video, which tackles the looming, unsolved, and somewhat disturbing mystery of the Fermi paradox—or, why ...