Water and oxygen aren’t enough: Scientists reveal two ‘must-have’ ingredients for life on other planets

New research from ETH Zurich challenges the long-held “follow the water” rule in the search for extraterrestrial life. Scientists argue that a planet’s habitability depends on a narrow chemical balance…

Comet 41P’s rotation slowed dramatically before it likely reversed, astronomers observe

A rare event was observed as comet 41P/Tuttle-Giacobini-Kresák dramatically slowed its rotation and then spun in the opposite direction. This extreme change in spin, driven by material jets, was captured…