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. 2023 November 5 [2]The night sky over a snowy tree-adorned landscape glows in green and purple. The auroral glow might appear to some to be shaped like a creature. Please see the explanation for more detailed information. Creature Aurora Over Norway Image Credit & Copyright: [3]Ole C. Salomonsen ([4]Arctic Light Photo) Explanation: It was Halloween and the sky looked like a creature. Exactly which creature, the [5]astrophotographer was unsure (but [6]possibly you can suggest one). Exactly what caused this [7]eerie apparition in 2013 was sure: one of the best [8]auroral displays that year. This [9]spectacular aurora had an unusually high degree of [10]detail. Pictured [11]here, the vivid green and purple [12]auroral colors are caused by high atmospheric [13]oxygen and [14]nitrogen reacting to a burst of incoming [15]electrons. Birch [16]trees in [17]Tromsø, [18]Norway formed an also [19]eerie foreground. Frequently, new [20]photogenic auroras accompany new [21]geomagnetic storms. Almost Hyperspace: [22]Random APOD Generator Tomorrow's picture: devil on mars __________________________________________________________________ [23]< | [24]Archive | [25]Submissions | [26]Index | [27]Search | [28]Calendar | [29]RSS | [30]Education | [31]About APOD | [32]Discuss | [33]> __________________________________________________________________ Authors & editors: [34]Robert Nemiroff ([35]MTU) & [36]Jerry Bonnell ([37]UMCP) NASA Official: Phillip Newman [38]Specific rights apply. [39]NASA Web Privacy Policy and Important Notices A service of: [40]ASD at [41]NASA / [42]GSFC, [43]NASA Science Activation & [44]Michigan Tech. U. References 1. https://apod.nasa.gov/apod/archivepix.html 2. https://apod.nasa.gov/apod/image/2311/CreatureAurora_Salomonsen_960.jpg 3. http://www.arcticlightphoto.no/about/ 4. http://www.arcticlightphoto.no/ 5. http://asterisk.apod.com/viewtopic.php?f=29&t=32252&start=225#p212559 6. https://asterisk.apod.com/discuss_apod.php?date=231105 7. https://apod.nasa.gov/apod/ap221030.html 8. https://apod.nasa.gov/apod/ap130609.html 9. https://spaceweathergallery.com/index.php?title=aurora 10. https://apod.nasa.gov/apod/ap020115.html 11. http://arcticlightphoto.photoshelter.com/gallery-image/News/G0000ABqHEeXXLF8/I0000s_hNlyttARI 12. https://annex.exploratorium.edu/learning_studio/auroras/difcolors.html 13. https://periodic.lanl.gov/8.shtml 14. https://periodic.lanl.gov/7.shtml 15. https://www.aps.org/publications/apsnews/200010/history.cfm 16. https://en.wikipedia.org/wiki/Birch 17. https://youtu.be/kSMgRWt9NHg 18. https://en.wikipedia.org/wiki/Norway 19. https://i.pinimg.com/736x/c4/da/bf/c4dabff6de32983eb430ff204334fb5b.jpg 20. http://apod.nasa.gov/cgi-bin/apod/apod_search?tquery=aurora 21. https://svs.gsfc.nasa.gov/31248/ 22. https://apod.nasa.gov/apod/random_apod.html 23. https://apod.nasa.gov/apod/ap231104.html 24. https://apod.nasa.gov/apod/archivepix.html 25. https://apod.nasa.gov/apod/lib/apsubmit2015.html 26. https://apod.nasa.gov/apod/lib/aptree.html 27. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search 28. https://apod.nasa.gov/apod/calendar/allyears.html 29. https://apod.com/feed.rss 30. https://apod.nasa.gov/apod/lib/edlinks.html 31. https://apod.nasa.gov/apod/lib/about_apod.html 32. https://asterisk.apod.com/discuss_apod.php?date=231105 33. https://apod.nasa.gov/apod/ap231106.html 34. http://www.phy.mtu.edu/faculty/Nemiroff.html 35. http://www.phy.mtu.edu/ 36. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html 37. http://www.astro.umd.edu/ 38. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 39. https://www.nasa.gov/about/highlights/HP_Privacy.html 40. https://astrophysics.gsfc.nasa.gov/ 41. https://www.nasa.gov/ 42. https://www.nasa.gov/centers/goddard/ 43. https://science.nasa.gov/learners 44. http://www.mtu.edu/