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. 2019 October 22 [2]See Explanation. Moving the cursor over the image will bring up an annotated version. Clicking on the image will bring up the highest resolution version available. Night Sky Reflections from the World's Largest Mirror Image Credit & Copyright: [3]Jheison Huerta Explanation: What's being reflected in the world's largest mirror? Stars, galaxies, and a planet. Many of these stars are confined to the grand arch that runs across the image, an arch that is the central plane of our home [4]Milky Way Galaxy. Inside the arch is another galaxy -- the neighboring [5]Large Magellanic Cloud (LMC). Stars that are individually visible include [6]Antares on the far left and [7]Sirius on the far right. The planet [8]Jupiter shines brightly just below [9]Antares. The featured picture is composed of 15 [10]vertical frames taken consecutively over ten minutes from the [11]Uyuni Salt Flat in [12]Bolivia. Uyuni Salt Flat ([13]Salar de Uyuni) is the largest [14]salt flat on [15]Earth and is so large and so [16]extraordinarily flat that, after a rain, it can become the world's largest mirror -- spanning 130 kilometers. [17]This expansive mirror was captured in early April reflecting each of the galaxies, stars, and planet mentioned above. Tomorrow's picture: famous swirls __________________________________________________________________ [18]< | [19]Archive | [20]Submissions | [21]Index | [22]Search | [23]Calendar | [24]RSS | [25]Education | [26]About APOD | [27]Discuss | [28]> __________________________________________________________________ Authors & editors: [29]Robert Nemiroff ([30]MTU) & [31]Jerry Bonnell ([32]UMCP) NASA Official: Phillip Newman [33]Specific rights apply. [34]NASA Web Privacy Policy and Important Notices A service of: [35]ASD at [36]NASA / [37]GSFC & [38]Michigan Tech. U. References 1. https://apod.nasa.gov/apod/archivepix.html 2. https://apod.nasa.gov/apod/image/1910/MilkyWaySaltFlat_Huerta_2048.jpg 3. https://jheisonhuerta.com/sobre-jheison-huerta 4. https://solarsystem.nasa.gov/resources/285/the-milky-way-galaxy/ 5. https://apod.nasa.gov/apod/ap150827.html 6. https://en.wikipedia.org/wiki/Antares 7. https://en.wikipedia.org/wiki/Sirius 8. https://apod.nasa.gov/apod/ap190205.html 9. https://apod.nasa.gov/apod/ap190827.html 10. https://i.pinimg.com/originals/1f/6e/6c/1f6e6c251f5e6cfd6bfc54cf572b0ed4.jpg 11. https://www.youtube.com/watch?v=BH0gyZG0_ok 12. https://en.wikipedia.org/wiki/Bolivia 13. https://en.wikipedia.org/wiki/Salar_de_Uyuni 14. https://en.wikipedia.org/wiki/Salt_pan_(geology) 15. https://solarsystem.nasa.gov/planets/earth/overview/ 16. https://www.youtube.com/watch?v=GowLYZl090I 17. https://youtu.be/1vPMD3wmaZo?t=204 18. https://apod.nasa.gov/apod/ap191021.html 19. https://apod.nasa.gov/apod/archivepix.html 20. https://apod.nasa.gov/apod/lib/apsubmit2015.html 21. https://apod.nasa.gov/apod/lib/aptree.html 22. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search 23. https://apod.nasa.gov/apod/calendar/allyears.html 24. https://apod.nasa.gov/apod.rss 25. https://apod.nasa.gov/apod/lib/edlinks.html 26. https://apod.nasa.gov/apod/lib/about_apod.html 27. http://asterisk.apod.com/discuss_apod.php?date=191022 28. https://apod.nasa.gov/apod/ap191023.html 29. http://www.phy.mtu.edu/faculty/Nemiroff.html 30. http://www.phy.mtu.edu/ 31. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html 32. http://www.astro.umd.edu/ 33. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 34. https://www.nasa.gov/about/highlights/HP_Privacy.html 35. https://astrophysics.gsfc.nasa.gov/ 36. https://www.nasa.gov/ 37. https://www.nasa.gov/centers/goddard/ 38. http://www.mtu.edu/