The Times of India

Comet 41Ps rotation slowed dramatically before it likely reversed, astronomers observe

A rare event was observed as comet 41P/Tuttle-Giacobini-Kresk dramatically slowed its rotation and then spun in the opposite direction. This extreme change in spin, driven by material jets, was captured by Hubble and Swift telescopes. Astronomers believe this process may explain the rarity of smaller comets.