The Comet That Stopped and Spun Backwards

Comet 41P Mystery: Spin Reversal, Outgassing & Cosmic Breakup

What if a day on a planet kept getting longer until the world simply stopped and started spinning the other way? That is exactly what happened to Comet 41P/Tuttle–Giacobini–Kresák. New analysis of Hubble data by astronomer David Jewitt (UCLA) reveals that in 2017, this "Jupiter-family" comet performed a dramatic spin reversal—slowing from a 20-hour day to a complete stop, before revving up in the opposite direction to a 14-hour rotation.

In this episode, we explore the "garden hose" effect: how uneven outgassing jets acted like tiny rocket thrusters to torque the comet’s nucleus. We also discuss a chilling prediction: 41P is spinning so chaotically that it might suffer a rotational breakup within the next 25 years, literally flying apart before our eyes. Join us as we prepare for its return in 2028 and what it teaches us about why small comets seem to disappear from our solar system.

#Comet41P #SpaceMysteries #AstronomyNews


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This episode includes AI-generated content.