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.

                                 2026 May 11

         IFRAME: [2]https://www.youtube.com/embed/afHfMMC-MJE?rel=0

                      Moon Setting Behind Teide Volcano
    Video Credit & [3]Copyright: Daniel López ([4]El Cielo de Canarias);
                   Music: Piano della Moon ([5]Dan Silva)

   Explanation: These people are not in danger. What is coming down from
   the left is just the Moon, far in the distance. [6]Luna appears so
   large here because she is being [7]photographed through a telescopic
   lens. What is moving is mostly [8]the Earth, whose spin causes [9]the
   Moon to slowly disappear behind [10]Mount Teide, a volcano in the
   [11]Canary Islands of [12]Spain off the northwest coast of [13]Africa.
   The people pictured are [14]16 kilometers away and many are facing the
   camera because they are watching [15]the Sun rise behind the
   photographer. It is not a [16]coincidence that a [17]full moon sets
   just when the [18]Sun rises because the Sun is always on the
   [19]opposite side of the sky from a full moon. The [20]featured video
   was made in 2018 during a full [21]Milk Moon. The video is not
   [22]time-lapse -- this was really how fast the Moon was setting.

                     Tomorrow's picture: stellar cluster
     __________________________________________________________________

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     __________________________________________________________________

    Authors & editors: [34]Robert Nemiroff ([35]MTU) & [36]Jerry Bonnell
                                 ([37]UMCP)
          NASA Official: Amber Straughn [38]Specific rights apply.
            [39]NASA Web Privacy, [40]Accessibility, [41]Notices;
                A service of: [42]ASD at [43]NASA / [44]GSFC,
                         [45]NASA Science Activation
                           & [46]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://www.youtube.com/embed/afHfMMC-MJE?rel=0
   3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
   4. http://www.elcielodecanarias.com/
   5. https://vimeo.com/dansilvaworld
   6. https://en.wikipedia.org/wiki/Luna_(goddess)
   7. https://apod.nasa.gov/apod/image/1806/Telescope_Teide.jpg
   8. https://science.nasa.gov/earth/
   9. https://science.nasa.gov/moon/
  10. https://apod.nasa.gov/apod/ap260505.html
  11. https://en.wikipedia.org/wiki/Canary_Islands
  12. https://en.wikipedia.org/wiki/Spain
  13. https://en.wikipedia.org/wiki/Africa
  14. https://apod.nasa.gov/apod/image/1806/teide_volcan_video.jpg
  15. https://science.nasa.gov/sun/facts/
  16. https://blogmais.wordpress.com/wp-content/uploads/2008/04/imagem_ht_07-04-23.jpg
  17. https://apod.nasa.gov/apod/ap211010.html
  18. https://apod.nasa.gov/apod/ap250401.html
  19. https://spaceplace.nasa.gov/all-about-the-moon/en/moon_phases.en.jpg
  20. https://vimeo.com/272723959
  21. https://www.csmonitor.com/Science/2010/0526/What-is-a-milk-moon-anyway
  22. https://apod.nasa.gov/apod/ap170820.html
  23. https://apod.nasa.gov/apod/ap260510.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=260511
  33. https://apod.nasa.gov/apod/ap260512.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://www.nasa.gov/general/accessibility/
  41. https://www.nasa.gov/privacy/
  42. https://astrophysics.gsfc.nasa.gov/
  43. https://www.nasa.gov/
  44. https://www.nasa.gov/centers/goddard/
  45. https://science.nasa.gov/learners
  46. http://www.mtu.edu/