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                        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.

                              2020 December 28
    [2]See Explanation. Clicking on the picture will download the highest
                        resolution version available.

                        M16: Inside the Eagle Nebula
                Image Credit & Copyright: [3]Nicolas Paladini

   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
   pillars and [11]round globules of dark dust and cold [12]molecular gas
   remain where stars are still forming. Already visible are several young
   [13]bright blue stars whose light and winds are burning away and
   pushing back the [14]remaining filaments and walls of gas and dust. The
   Eagle [15]emission nebula, tagged M16, lies about 6500 [16]light years
   away, spans about 20 light-years, and is visible with [17]binoculars
   toward the [18]constellation of the Serpent ([19]Serpens). [20]This
   picture involved over 12 hours of imaging and combines three specific
   emitted colors emitted by [21]sulfur (colored as red), [22]hydrogen
   (yellow), and [23]oxygen (blue).

   Gallery: [24]Notable images of the recent Total Solar Eclipse submitted
                                   to APOD
                   Tomorrow's picture: a spot of darkness
     __________________________________________________________________

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    Authors & editors: [36]Robert Nemiroff ([37]MTU) & [38]Jerry Bonnell
                                 ([39]UMCP)
          NASA Official: Phillip Newman [40]Specific rights apply.
              [41]NASA Web Privacy Policy and Important Notices
                A service of: [42]ASD at [43]NASA / [44]GSFC
                           & [45]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2012/EagleNebula_Paladini_2854.jpg
   3. https://www.instagram.com/nicolas_paladini/
   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/ap201206.html
  11. https://apod.nasa.gov/apod/ap081228.html
  12. https://apod.nasa.gov/apod/ap201122.html
  13. https://apod.nasa.gov/apod/ap200909.html
  14. https://apod.nasa.gov/apod/ap181202.html
  15. https://apod.nasa.gov/apod/emission_nebulae.html
  16. https://starchild.gsfc.nasa.gov/docs/StarChild/questions/question19.html
  17. http://www.birdwatching.com/optics/binoculars1.html#How Binoculrs  Wrkk
  18. https://spaceplace.nasa.gov/search/constellations/
  19. https://chandra.harvard.edu/photo/constellations/serpens.html
  20. https://www.instagram.com/p/CHQf9uxJ3GW/
  21. https://en.wikipedia.org/wiki/Sulfur
  22. http://www.rsc.org/periodic-table/element/1/hydrogen
  23. https://www.youtube.com/watch?v=uPK_rSf1WUc
  24. https://www.facebook.com/media/set?vanity=APOD.Sky&set=a.3216915061746024
  25. https://apod.nasa.gov/apod/ap201227.html
  26. https://apod.nasa.gov/apod/archivepix.html
  27. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  28. https://apod.nasa.gov/apod/lib/aptree.html
  29. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  30. https://apod.nasa.gov/apod/calendar/allyears.html
  31. https://apod.nasa.gov/apod.rss
  32. https://apod.nasa.gov/apod/lib/edlinks.html
  33. https://apod.nasa.gov/apod/lib/about_apod.html
  34. http://asterisk.apod.com/discuss_apod.php?date=201228
  35. https://apod.nasa.gov/apod/ap201229.html
  36. http://www.phy.mtu.edu/faculty/Nemiroff.html
  37. http://www.phy.mtu.edu/
  38. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  39. http://www.astro.umd.edu/
  40. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  41. https://www.nasa.gov/about/highlights/HP_Privacy.html
  42. https://astrophysics.gsfc.nasa.gov/
  43. https://www.nasa.gov/
  44. https://www.nasa.gov/centers/goddard/
  45. http://www.mtu.edu/