Traces of 4.6-billion-year-old methane snow found by James Webb at edge of solar system

Methane snow has been discovered on the dwarf planets Eris and Makemake, located far beyond Neptune in the Kuiper Belt. Previously, scientists assumed that the methane was produced by hot springs inside the planets that could contain liquid water. However, the latest data from the James Webb telescope have refuted these assumptions. Photo: NASA Eris is almost the size of Pluto, and Makemake is moving... The post Traces of 4.6-billion-year-old me…