New 3I/ATLAS images from NASA and the ESA suggest the interstellar comet is active as it approaches Earth in December.

With 3I/ATLAS just days away from making its closest approach to Earth, agencies around the globe are conducting the largest and most extensive planetary defense drill — with the goal of protecting ourselves against future threats from beyond.

Astronomers detect "wobbling high-latitude jet" in comet 3I/ATLAS, according to a preprint paper. A new mutation of flu strain A (H3N2) is driving an increase in influenza cases and hospitalizations. Bears in central Italy are evolving to become smaller and less aggressive after interacting with humans, study finds.