﻿ Astronomy Picture of the Day [1]Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2022 September 11 IFRAME: [2]https://www.youtube.com/embed/my1euFQHH-o?rel=0 Planets of the Solar System: Tilts and Spins Video Credit: [3]NASA, Animation: [4]James O'Donoghue ([5]JAXA) Explanation: How does your favorite planet spin? Does it spin rapidly around a nearly vertical axis, or horizontally, or backwards? The [6]featured video animates [7]NASA images of [8]all eight planets in [9]our Solar System to show them [10]spinning side-by-side for an easy comparison. In the [11]time-lapse video, a day on Earth -- one Earth rotation -- takes just a few seconds. [12]Jupiter rotates the fastest, while [13]Venus spins not only the slowest (can you see it?), but backwards. The inner rocky planets, across the top, most certainly underwent [14]dramatic [15]spin-altering collisions during the early days of the Solar System. The reasons why planets spin and tilt as they do remains a [16]topic of research with much insight gained from modern [17]computer modeling and the recent discovery and analysis of hundreds of [18]exoplanets: planets [19]orbiting other stars. Tomorrow's picture: stars and sprites __________________________________________________________________ [20]< | [21]Archive | [22]Submissions | [23]Index | [24]Search | [25]Calendar | [26]RSS | [27]Education | [28]About APOD | [29]Discuss | [30]> __________________________________________________________________ Authors & editors: [31]Robert Nemiroff ([32]MTU) & [33]Jerry Bonnell ([34]UMCP) NASA Official: Phillip Newman [35]Specific rights apply. [36]NASA Web Privacy Policy and Important Notices A service of: [37]ASD at [38]NASA / [39]GSFC, [40]NASA Science Activation & [41]Michigan Tech. U. References 1. https://apod.nasa.gov/apod/archivepix.html 2. https://www.youtube.com/embed/my1euFQHH-o?rel=0 3. https://www.nasa.gov/ 4. https://twitter.com/physicsJ 5. http://global.jaxa.jp/ 6. https://www.youtube.com/watch?v=my1euFQHH-o 7. https://www.nasa.gov/ 8. https://apod.nasa.gov/apod/ap060828.html 9. https://solarsystem.nasa.gov/solar-system/our-solar-system/in-depth/ 10. https://youtu.be/qhJrpzsKEXo 11. https://www.youtube.com/embed/my1euFQHH-o 12. https://solarsystem.nasa.gov/planets/jupiter/overview/ 13. https://solarsystem.nasa.gov/planets/venus/overview/ 14. https://www.youtube.com/watch?v=lEIGjXbtQwY 15. https://mobile.arc.nasa.gov/public/iexplore/missions/pages/yss/june.html 16. http://allwallps.com/bin/02/54/72a.jpg 17. https://ui.adsabs.harvard.edu/abs/2001Natur.411..767C/abstract 18. https://exoplanets.nasa.gov/ 19. https://apod.nasa.gov/apod/ap151205.html 20. https://apod.nasa.gov/apod/ap220910.html 21. https://apod.nasa.gov/apod/archivepix.html 22. https://apod.nasa.gov/apod/lib/apsubmit2015.html 23. https://apod.nasa.gov/apod/lib/aptree.html 24. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search 25. https://apod.nasa.gov/apod/calendar/allyears.html 26. https://apod.nasa.gov/apod.rss 27. https://apod.nasa.gov/apod/lib/edlinks.html 28. https://apod.nasa.gov/apod/lib/about_apod.html 29. http://asterisk.apod.com/discuss_apod.php?date=220911 30. https://apod.nasa.gov/apod/ap220912.html 31. http://www.phy.mtu.edu/faculty/Nemiroff.html 32. http://www.phy.mtu.edu/ 33. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html 34. http://www.astro.umd.edu/ 35. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 36. https://www.nasa.gov/about/highlights/HP_Privacy.html 37. https://astrophysics.gsfc.nasa.gov/ 38. https://www.nasa.gov/ 39. https://www.nasa.gov/centers/goddard/ 40. https://science.nasa.gov/learners 41. http://www.mtu.edu/