The surface of Arrokoth, an oddly flat body on the edge of the solar system, may have been boiled away by heat from the sun
Source:
https://www.newscientist.com/article/2256103-space-rock-arrokoth-may-have-been-flattened-by-the-heat-of-the-sun/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home