In Christopher Nolan’s Interstellar, astronauts land on a planet orbiting close to a black hole. They spend a few hours on its surface. When they return to their spacecraft, they discover that 23 year...
Interstellar objects usually pass through quietly, noticed only by a small group of astronomers before fading back into deep space. Comet 3I/ATLAS has followed a different path. Even as it moves away ...