The interstellar comet 3I/ATLAS changed significantly as it flew by the sun last fall, astronomers have discovered.

Interstellar invader comet 3I/ATLAS made a startling transformation as it passed the sun

Source: space
Source Link: https://www.space.com/astronomy/comets/interstellar-invader-comet-3i-atlas-made-a-startling-transformation-as-it-passed-the-sun