﻿ 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 August 15 [2]A body of water is seen in front of a night sky. The water reflects the sky. In the sky, on the right are green aurora. In the center is an orange plume. On the right are three while plumes. Please see the explanation for more detailed information. A Triply Glowing Night Sky over Iceland Credit & Copyright: [3]Wioleta Gorecka; Text: [4]Natalia Lewandowska ([5]SUNY Oswego) Explanation: The Sun is [6]not the quiet place it seems. [7]It expels an unsteady stream of energetic [8]electrons and [9]protons known as the [10]solar wind. These charged particles deform the [11]Earth's magnetosphere, change paths, and collide with atoms in [12]Earth's atmosphere, causing the generation of light in [13]auroras like that visible in [14]green in the image left. Earth itself is also [15]geologically active and covered with [16]volcanoes. For example, [17]Fagradalsfjall volcano in [18]Iceland, seen emitting hot gas in orange near the image center. Iceland is one of the most [19]geologically active places on Earth. On the far right is the [20]Svartsengi geothermal power plant which creates the famous human-made [21]Blue Lagoon, shown emitting white gas plumes. The [22]featured composition therefore highlights [23]three different sky phenomena, including both natural and human-made phenomena. Tomorrow's picture: a cosmic embrace __________________________________________________________________ [24]< | [25]Archive | [26]Submissions | [27]Index | [28]Search | [29]Calendar | [30]RSS | [31]Education | [32]About APOD | [33]Discuss | [34]> __________________________________________________________________ Authors & editors: [35]Robert Nemiroff ([36]MTU) & [37]Jerry Bonnell ([38]UMCP) NASA Official: Phillip Newman [39]Specific rights apply. [40]NASA Web Privacy Policy and Important Notices A service of: [41]ASD at [42]NASA / [43]GSFC, [44]NASA Science Activation & [45]Michigan Tech. U. References 1. https://apod.nasa.gov/apod/archivepix.html 2. https://apod.nasa.gov/apod/image/2308/TripleIceland_Zarzycka_6501.jpg 3. https://www.instagram.com/wiola.gorecka/?igshid=ff0xckzefdlb 4. https://www.oswego.edu/physics/natalia-lewandowska 5. https://www.oswego.edu/physics/ 6. https://apod.nasa.gov/apod/ap230711.html 7. https://soho.nascom.nasa.gov/data/realtime-images.html 8. https://en.wikipedia.org/wiki/Electron 9. https://en.wikipedia.org/wiki/Proton 10. https://solarsystem.nasa.gov/resources/2288/the-solar-wind-across-our-solar-system/ 11. https://www.nasa.gov/mission_pages/sunearth/multimedia/magnetosphere.html 12. https://spaceplace.nasa.gov/atmosphere/en/ 13. https://apod.nasa.gov/apod/ap230704.html 14. https://www.theaurorazone.com/about-the-aurora/the-science-of-the-northern-lights/the-northern-lights-colours 15. https://en.wikipedia.org/wiki/Geological_history_of_Earth 16. https://apod.nasa.gov/apod/ap210303.html 17. https://youtu.be/DQx96G4yHd8 18. https://en.wikipedia.org/wiki/Iceland 19. https://en.wikipedia.org/wiki/Geology_of_Reykjanes_Peninsula 20. https://guidetoiceland.is/travel-iceland/drive/svartsengi 21. https://www.insider.com/icelands-blue-lagoon-man-made-2017-11 22. https://www.instagram.com/p/CukPkBPo5b3/ 23. https://as2.ftcdn.net/v2/jpg/01/89/49/89/1000_F_189498933_OeutsN0mMlzJGaJZJvkXIsoSCUCFIO7W.jpg 24. https://apod.nasa.gov/apod/ap230814.html 25. https://apod.nasa.gov/apod/archivepix.html 26. https://apod.nasa.gov/apod/lib/apsubmit2015.html 27. https://apod.nasa.gov/apod/lib/aptree.html 28. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search 29. https://apod.nasa.gov/apod/calendar/allyears.html 30. https://apod.nasa.gov/apod.rss 31. https://apod.nasa.gov/apod/lib/edlinks.html 32. https://apod.nasa.gov/apod/lib/about_apod.html 33. https://asterisk.apod.com/discuss_apod.php?date=230815 34. https://apod.nasa.gov/apod/ap230816.html 35. http://www.phy.mtu.edu/faculty/Nemiroff.html 36. http://www.phy.mtu.edu/ 37. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html 38. http://www.astro.umd.edu/ 39. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 40. https://www.nasa.gov/about/highlights/HP_Privacy.html 41. https://astrophysics.gsfc.nasa.gov/ 42. https://www.nasa.gov/ 43. https://www.nasa.gov/centers/goddard/ 44. https://science.nasa.gov/learners 45. http://www.mtu.edu/