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 April 24 (BUTTON) [SatelliteSale_NASA_960_split3.jpg] Split the Universe Image Credit: [2]NASA, Erwin Schrödinger's cat Explanation: Just now, before you hit the button, two future universes are possible. After pressing the button, though, you will live in only one. A real-web version of the famous [3]Schrödinger's cat experiment clicking the red button in the [4]featured astronaut image should transform that image into a picture of the same astronaut holding one of two cats -- one living, or one dead. The timing of your click, combined with the [5]wiring of your brain and the millisecond timing of your device, will all conspire together to create a [6]result dominated, potentially, by the [7]randomness of quantum mechanics. Some believe that your personally-initiated [8]quantum decision will split the universe in two, and that both the live-cat and dead-cat universes exist in separate parts of a [9]larger multiverse. Others believe that the result of your click will [10]collapse the two possible [11]universes into one -- in a way that could not have been predicted beforehand. Yet others believe that [12]the universe is classically [13]deterministic, so that by pressing the button you did not really split the universe, but just carried out an action predestined since time began. [14]We at [15]APOD believe that however [16]silly you may feel clicking the red button, and regardless of the outcome, you should have a thought-provoking day. Or two. Tomorrow's picture: great carina __________________________________________________________________ [17]< | [18]Archive | [19]Submissions | [20]Index | [21]Search | [22]Calendar | [23]RSS | [24]Education | [25]About APOD | [26]Discuss | [27]> __________________________________________________________________ Authors & editors: [28]Robert Nemiroff ([29]MTU) & [30]Jerry Bonnell ([31]UMCP) NASA Official: Phillip Newman [32]Specific rights apply. [33]NASA Web Privacy Policy and Important Notices A service of: [34]ASD at [35]NASA / [36]GSFC & [37]Michigan Tech. U. References 1. https://apod.nasa.gov/apod/archivepix.html 2. https://www.nasa.gov/ 3. https://en.wikipedia.org/wiki/Schrödinger's_cat 4. https://www.flickr.com/photos/nasacommons/7678545042 5. https://www.nature.com/nrn/journal/v9/n4/full/nrn2258.html 6. https://ui.adsabs.harvard.edu/abs/2014PhRvD..90l3514A/abstract 7. https://en.wikipedia.org/wiki/Quantum_indeterminacy 8. https://asterisk.apod.com/viewtopic.php?f=39&t=21138 9. https://www.preposterousuniverse.com/blog/2011/05/26/are-many-worlds-and-the-multiverse-the-same-idea/ 10. https://en.wikipedia.org/wiki/Wave_function_collapse 11. https://www.nasa.gov/content/universe-missions-list 12. https://apod.nasa.gov/apod/ap220316.html 13. http://backreaction.blogspot.com/2021/12/does-superdeterminism-save-quantum.html 14. https://apod.nasa.gov/apod/ap200616.html 15. https://apod.nasa.gov/apod/ap150616.html 16. https://assets.entrepreneur.com/content/3x2/2000/how-win-social-media-right-now-silly-cat-pics-dont-cut.jpg?crop=1:1 17. https://apod.nasa.gov/apod/ap220423.html 18. https://apod.nasa.gov/apod/archivepix.html 19. https://apod.nasa.gov/apod/lib/apsubmit2015.html 20. https://apod.nasa.gov/apod/lib/aptree.html 21. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search 22. https://apod.nasa.gov/apod/calendar/allyears.html 23. https://apod.nasa.gov/apod.rss 24. https://apod.nasa.gov/apod/lib/edlinks.html 25. https://apod.nasa.gov/apod/lib/about_apod.html 26. http://asterisk.apod.com/discuss_apod.php?date=220424 27. https://apod.nasa.gov/apod/ap220425.html 28. http://www.phy.mtu.edu/faculty/Nemiroff.html 29. http://www.phy.mtu.edu/ 30. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html 31. http://www.astro.umd.edu/ 32. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 33. https://www.nasa.gov/about/highlights/HP_Privacy.html 34. https://astrophysics.gsfc.nasa.gov/ 35. https://www.nasa.gov/ 36. https://www.nasa.gov/centers/goddard/ 37. http://www.mtu.edu/