Episode two also featured a key moment that only the most dedicated fans might have picked up on. This inside joke actually ...

Interstellar Comet 3I/ATLAS makes its closest Earth pass early on Dec. 19. Here's what astronomers know about its origin and speed.

In November, SETI Institute researchers contributed expert perspective to media stories on interstellar comet 3I/ATLAS and ...

NASA's Hubble Space Telescope and an ESA orbiter bound for Jupiter both recently glimpsed 3I/ATLAS. The comet will make its closest approach to Earth in December but poses no threat and is not visible ...

The interstellar comet 3I/ATLAS is entering its closest approach to Earth in mid-December, drawing intense scientific interest as astronomers examine a rare object formed in another star system. NASA ...