¿ 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. 2021 February 28 [2]See Explanation. Clicking on the picture will download the highest resolution version available. The Aurora Tree Image Credit & Copyright: [3]Alyn Wallace Explanation: Yes, but can your tree do this? [4]Pictured is a visual coincidence between the dark branches of a nearby tree and bright glow of a distant aurora. The beauty of the [5]aurora -- combined with how it seemed to mimic a [6]tree right nearby -- mesmerized the photographer to such a degree that he momentarily forgot to take pictures. When viewed at the right angle, it seemed that this tree had aurora for leaves. Fortunately, before the aurora morphed into a [7]different [8]overall [9]shape, he came to his senses and capture the awe-inspiring [10]momentary coincidence. Typically triggered by [11]solar explosions, aurora are caused by high energy [12]electrons impacting the [13]Earth's atmosphere around 150 kilometers up. The unusual Earth-sky collaboration was witnessed in March of 2017 in [14]Iceland. Almost Hyperspace: [15]Random APOD Generator Tomorrow's picture: interstellar fowl __________________________________________________________________ [16]< | [17]Archive | [18]Submissions | [19]Index | [20]Search | [21]Calendar | [22]RSS | [23]Education | [24]About APOD | [25]Discuss | [26]> __________________________________________________________________ Authors & editors: [27]Robert Nemiroff ([28]MTU) & [29]Jerry Bonnell ([30]UMCP) NASA Official: Phillip Newman [31]Specific rights apply. [32]NASA Web Privacy Policy and Important Notices A service of: [33]ASD at [34]NASA / [35]GSFC & [36]Michigan Tech. U. References 1. https://apod.nasa.gov/apod/archivepix.html 2. https://apod.nasa.gov/apod/image/2102/AuroraTree_Wallace_2048.jpg 3. https://www.instagram.com/alynwallace/ 4. https://www.instagram.com/p/Bk5qaz2nRg6/ 5. https://www.nasa.gov/mission_pages/sunearth/about-aurorae/index.html 6. https://apod.nasa.gov/apod/ap150525.html 7. https://apod.nasa.gov/apod/ap161031.html 8. https://apod.nasa.gov/apod/ap161023.html 9. https://apod.nasa.gov/apod/ap190218.html 10. https://blogmais.files.wordpress.com/2008/04/imagem_ht_07-04-23.jpg 11. https://solarscience.msfc.nasa.gov/CMEs.shtml 12. http://history.aip.org/exhibits/electron/jjelectr.htm 13. https://www.nasa.gov/mission_pages/sunearth/science/atmosphere-layers2.html 14. https://en.wikipedia.org/wiki/Iceland 15. https://apod.nasa.gov/apod/random_apod.html 16. https://apod.nasa.gov/apod/ap210227.html 17. https://apod.nasa.gov/apod/archivepix.html 18. https://apod.nasa.gov/apod/lib/apsubmit2015.html 19. https://apod.nasa.gov/apod/lib/aptree.html 20. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search 21. https://apod.nasa.gov/apod/calendar/allyears.html 22. https://apod.nasa.gov/apod.rss 23. https://apod.nasa.gov/apod/lib/edlinks.html 24. https://apod.nasa.gov/apod/lib/about_apod.html 25. http://asterisk.apod.com/discuss_apod.php?date=210228 26. https://apod.nasa.gov/apod/ap210301.html 27. http://www.phy.mtu.edu/faculty/Nemiroff.html 28. http://www.phy.mtu.edu/ 29. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html 30. http://www.astro.umd.edu/ 31. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 32. https://www.nasa.gov/about/highlights/HP_Privacy.html 33. https://astrophysics.gsfc.nasa.gov/ 34. https://www.nasa.gov/ 35. https://www.nasa.gov/centers/goddard/ 36. http://www.mtu.edu/