We still don't know how long a day is on Saturn | Unsolved Mystery

It was only in 2019 that we had some clue for how long a day was on Saturn. To learn more science and maths by *doing* head to https://brilliant.org/drbecky

Note: Sorry for the audio in this video. The battery on my lav mic crapped out halfway through. You're hearing backup audio recorded on a podcast mic that was about a metre away so it's got a fair bit of reverb and room tone.

Warwick (1964; radio emission from Jupiter review) -http://articles.adsabs.harvard.edu/pdf/1964ARA%26A...2....1W
Kaiser et al. (1980; Voyager measurement) - https://science.sciencemag.org/content/209/4462/1238
Gurnett et al. (2005; Cassini measurement) - https://science.sciencemag.org/content/307/5713/1255
Gurnett et al. (2011; northern and southern hemisphere different) - https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2011GL049547
Gurnett et al. (2007; Enceladus causing drag) - https://science.sciencemag.org/content/316/5823/442.full
Mankovich et al. (2019; ring seismology solves the problem?) - https://arxiv.org/pdf/1805.10286.pdf

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The artwork in the background is a scientifically accurate map showing the orbits of more than 18000 asteroids in the Solar System, created by Eleanor Lutz. Find out more and buy one here: https://eleanorlutz.com/mapping-18000-asteroids

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👩🏽‍💻 I'm Dr Becky Smethurst, an astrophysicist at the University of Oxford (Christ Church). I love making videos about science with an unnatural level of enthusiasm. I like to focus on how we know things, not just what we know. And especially, the things we still don't know. If you've ever wondered about something in space and couldn't find an answer online - you can ask me! My day job is to do research into how supermassive black holes can affect the galaxies that they live in. In particular, I look at whether the energy output from the disk of material orbiting around a growing supermassive black hole can stop a galaxy from forming stars.

http://drbecky.uk.com
https://rebeccasmethurst.co.uk

Видео We still don't know how long a day is on Saturn | Unsolved Mystery канала Dr. Becky