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.

                               2022 January 16
    [2]The featured image shows a cumulonimbus cloud retreating at sunset
   in 2013 over Alberta, Canada. The large cloud exhibits mammatus clouds
   at the near end and rain at the far end. Please see the explanation for
                         more detailed information.

                     A Retreating Thunderstorm at Sunset
         Image Credit & Copyright: [3]Alan Dyer ([4]The Amazing Sky)

   Explanation: What type of cloud is that? This retreating
   [5]cumulonimbus cloud, more commonly called a thundercloud, is somewhat
   unusual as it contains the [6]unusual bumpiness of a [7]mammatus cloud
   on the near end, while simultaneously producing falling rain on the far
   end. Taken in mid-2013 in southern [8]Alberta, [9]Canada, the cloud is
   moving to the east, into the distance, as the sun sets in the west,
   behind the camera. In the [10]featured image, graphic sunset colors
   cross the sky to give the already [11]photogenic [12]cloud striking
   orange and pink hues. A darkening [13]blue sky covers the background.
   Further in the distance, a [14]rising, [15]waxing, [16]gibbous [17]moon
   is visible on the far right.

                   Tomorrow's picture: angular space dust
     __________________________________________________________________

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    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/2201/thundercloud_dyer_2000.jpg
   3. https://amazingsky.net/about/
   4. https://amazingsky.net/
   5. https://en.wikipedia.org/wiki/Cumulonimbus_cloud
   6. https://apod.nasa.gov/apod/ap210811.html
   7. https://en.wikipedia.org/wiki/Mammatus_cloud
   8. https://youtu.be/aNgPKawdaRY
   9. https://en.wikipedia.org/wiki/Canada
  10. https://www.flickr.com/photos/iyacalgary/9083646144/in/pool-apods/
  11. https://i.pinimg.com/originals/d4/86/20/d4862057e11e7ae17d5f46c00c059c64.jpg
  12. https://www.nasa.gov/audience/forstudents/5-8/features/nasa-knows/what-are-clouds-58.html
  13. https://spaceplace.nasa.gov/blue-sky/
  14. https://apod.nasa.gov/apod/ap121208.html
  15. https://starchild.gsfc.nasa.gov/docs/StarChild/questions/question3.html
  16. https://apod.nasa.gov/apod/ap181119.html
  17. https://svs.gsfc.nasa.gov/4955
  18. https://apod.nasa.gov/apod/ap220115.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=220116
  28. https://apod.nasa.gov/apod/ap220117.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/