3I/ATLAS 'Intergalactic cyanide tablet'? Harvard expert Avi Loeb calms fears over 'poison' comet

When the interstellar visitor 3I/ATLAS got closest to Earth on December 19, it left more than just a green glow behind. It left behind a lot of questions that sound like the plot of a sci-fi movie.

Here's What We Know About The Real Alien Planet Inspiring 'Pluribus'

Pluribus imagines Kepler-22b as an ocean world that sends a gift to humanity through radio waves. In real life, no such ...