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 May 15
     [2]A deep image of the Eagle Nebula in many scientifically assigned
   colors. The area around the nebula appears red, but the center is blue
      with unusual pillars visible. Please see the explanation for more
                            detailed information.

                        M16: Eagle Nebula Deep Field
                 Image Credit & Copyright: [3]Gianni Lacroce

   Explanation: From afar, the whole thing looks like an [4]eagle. A
   closer look at the [5]Eagle Nebula, however, shows the [6]bright region
   is actually a window into the center of a larger dark shell of [7]dust.
   Through this window, a brightly-lit [8]workshop appears where a whole
   [9]open cluster of stars is being formed. In this cavity, [10]tall
   [11]pillars and [12]round globules of dark dust and cold [13]molecular
   gas remain where stars are still forming. Already visible are several
   young [14]bright blue stars whose light and winds are burning away and
   pushing back the [15]remaining filaments and walls of gas and dust. The
   Eagle [16]emission nebula, tagged M16, lies about 6500 [17]light years
   away, spans about 20 light-years, and is visible with [18]binoculars
   toward the [19]constellation of the Serpent ([20]Serpens). [21]This
   picture involved [22]long and deep exposures and combined three
   specific emitted colors emitted by [23]sulfur (colored as yellow),
   [24]hydrogen (red), and [25]oxygen (blue).

                      Tomorrow's picture: sun streamers
     __________________________________________________________________

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    Authors & editors: [37]Robert Nemiroff ([38]MTU) & [39]Jerry Bonnell
                                 ([40]UMCP)
          NASA Official: Phillip Newman [41]Specific rights apply.
              [42]NASA Web Privacy Policy and Important Notices
                A service of: [43]ASD at [44]NASA / [45]GSFC,
                         [46]NASA Science Activation
                           & [47]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2305/EagleDeep_Lacroce_2047.jpg
   3. https://www.instagram.com/giannilacroce/
   4. https://www.pbs.org/wnet/nature/eagles-introduction/3089/
   5. https://en.wikipedia.org/wiki/Eagle_Nebula
   6. https://noirlab.edu/public/images/noao-02181/
   7. https://apod.nasa.gov/apod/ap030706.html
   8. https://www.youtube.com/watch?v=rvXIgpIuuxw
   9. https://apod.nasa.gov/apod/open_clusters.html
  10. https://apod.nasa.gov/apod/ap220925.html
  11. https://apod.nasa.gov/apod/ap201206.html
  12. https://apod.nasa.gov/apod/ap081228.html
  13. https://apod.nasa.gov/apod/ap230129.html
  14. https://apod.nasa.gov/apod/ap200909.html
  15. https://apod.nasa.gov/apod/ap221020.html
  16. https://apod.nasa.gov/apod/emission_nebulae.html
  17. https://starchild.gsfc.nasa.gov/docs/StarChild/questions/question19.html
  18. https://www.explainthatstuff.com/binoculars.html
  19. https://spaceplace.nasa.gov/constellations/en/
  20. https://chandra.harvard.edu/photo/constellations/serpens.html
  21. https://www.flickr.com/photos/194921065@N03/52874818977/in/pool-apods/
  22. https://www.thesun.co.uk/wp-content/uploads/2020/02/NINTCHDBPICT000560584900.jpg
  23. https://en.wikipedia.org/wiki/Sulfur
  24. http://www.rsc.org/periodic-table/element/1/hydrogen
  25. https://www.youtube.com/watch?v=uPK_rSf1WUc
  26. https://apod.nasa.gov/apod/ap230514.html
  27. https://apod.nasa.gov/apod/archivepix.html
  28. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  29. https://apod.nasa.gov/apod/lib/aptree.html
  30. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  31. https://apod.nasa.gov/apod/calendar/allyears.html
  32. https://apod.nasa.gov/apod.rss
  33. https://apod.nasa.gov/apod/lib/edlinks.html
  34. https://apod.nasa.gov/apod/lib/about_apod.html
  35. https://asterisk.apod.com/discuss_apod.php?date=230515
  36. https://apod.nasa.gov/apod/ap230516.html
  37. http://www.phy.mtu.edu/faculty/Nemiroff.html
  38. http://www.phy.mtu.edu/
  39. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  40. http://www.astro.umd.edu/
  41. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  42. https://www.nasa.gov/about/highlights/HP_Privacy.html
  43. https://astrophysics.gsfc.nasa.gov/
  44. https://www.nasa.gov/
  45. https://www.nasa.gov/centers/goddard/
  46. https://science.nasa.gov/learners
  47. http://www.mtu.edu/