Mysterious comet disintegration caught by telescope after lucky break
Comet K1 captured by the Hubble Space Telescope NASA, ESA, Dennis Bodewits (AU) By a stroke of luck, we have seen a comet just days after it cracked into four pieces. This could provide a crucial window into the history of the solar system. John Noonan at Auburn University in Alabama and his colleagues had planned to observe a different comet with the Hubble Space Telescope, but limitations to the spacecraft’s ability to turn quickly made that impossible, so they found a new target: a comet called C/2025 K1 (ATLAS). When they pointed Hubble at K1, they saw not a single comet but four fragments. “We have seen comets break up before – we’ve seen them break up from the ground all the time – but this one wasn’t known to have broken up when we looked at it,” says Noonan. “The amount of sheer luck that came into acquiring these images cannot be overstated.” We have never taken such clear pictures of a comet that’s just broken up before, because it is hard to …

