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 April 13
      [2]The featured image shows Devils Tower in Wyoming, USA under a
     brilliant sky that includes a deep image of the central bank of our
       Milky Way galaxy. Please see the explanation for more detailed
                                information.

                         Milky Way over Devils Tower
               Image Credit & Copyright: [3]MaryBeth Kiczenski

   Explanation: What created Devils Tower? The origin of this
   [4]extraordinary rock monolith in [5]Wyoming, [6]USA is still debated,
   with a leading hypothesis holding that it is a hardened lava plume that
   never reached the surface to become a volcano. In [7]this theory, the
   lighter rock that once surrounded the dense volcanic neck has now
   eroded away, leaving [8]the dramatic tower. Known by [9]Native
   Americans by names including [10]Bear's Lodge and Great Gray Horn, the
   dense rock includes the longest [11]hexagonal [12]columns known, some
   over 180-meters tall. High above, the [13]central band of the [14]Milky
   Way galaxy arches across the sky. Many notable sky objects are visible,
   including dark strands of the [15]Pipe Nebula and the [16]reddish
   Lagoon Nebula to the tower's right. Green grass and trees line [17]the
   foreground, while clouds appear near the horizon to the tower's left.
   Unlike many other international landmarks, mountaineers are permitted
   to [18]climb Devils Tower.

   Birthday Surprise: [19]What picture did APOD feature on your birthday?
                                 (post 1995)
                       Tomorrow's picture: open space
     __________________________________________________________________

      [20]< | [21]Archive | [22]Submissions | [23]Index | [24]Search |
   [25]Calendar | [26]RSS | [27]Education | [28]About APOD | [29]Discuss |
                                    [30]>
     __________________________________________________________________

    Authors & editors: [31]Robert Nemiroff ([32]MTU) & [33]Jerry Bonnell
                                 ([34]UMCP)
          NASA Official: Phillip Newman [35]Specific rights apply.
              [36]NASA Web Privacy Policy and Important Notices
                A service of: [37]ASD at [38]NASA / [39]GSFC
                           & [40]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2204/DevilsWay_Kiczenski_1402.jpg
   3. https://www.shelbydiamondstar.com/emotional
   4. https://i.imgflip.com/3379n3.png"
   5. https://en.wikipedia.org/wiki/Wyoming
   6. https://en.wikipedia.org/wiki/United_States
   7. https://www.nps.gov/deto/learn/nature/tower-formation.htm
   8. https://youtu.be/aGRC7hwo3gk
   9. https://en.wikipedia.org/wiki/Native_Americans_in_the_United_States
  10. https://en.wikipedia.org/wiki/Devils_Tower
  11. https://www.mathsisfun.com/geometry/hexagon.html
  12. https://en.wikipedia.org/wiki/Columnar_jointing
  13. https://apod.nasa.gov/apod/ap211025.html
  14. https://imagine.gsfc.nasa.gov/science/objects/milkyway1.html
  15. https://apod.nasa.gov/apod/ap200807.html
  16. https://apod.nasa.gov/apod/ap181112.html
  17. https://youtu.be/raLN8Jx46zU
  18. https://youtu.be/cCv9_Iv-8j8
  19. https://apod.nasa.gov/apod/calendar/allyears.html
  20. https://apod.nasa.gov/apod/ap220412.html
  21. https://apod.nasa.gov/apod/archivepix.html
  22. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  23. https://apod.nasa.gov/apod/lib/aptree.html
  24. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  25. https://apod.nasa.gov/apod/calendar/allyears.html
  26. https://apod.nasa.gov/apod.rss
  27. https://apod.nasa.gov/apod/lib/edlinks.html
  28. https://apod.nasa.gov/apod/lib/about_apod.html
  29. http://asterisk.apod.com/discuss_apod.php?date=220413
  30. https://apod.nasa.gov/apod/ap220414.html
  31. http://www.phy.mtu.edu/faculty/Nemiroff.html
  32. http://www.phy.mtu.edu/
  33. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  34. http://www.astro.umd.edu/
  35. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  36. https://www.nasa.gov/about/highlights/HP_Privacy.html
  37. https://astrophysics.gsfc.nasa.gov/
  38. https://www.nasa.gov/
  39. https://www.nasa.gov/centers/goddard/
  40. http://www.mtu.edu/