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.

                                 2021 May 15
    [2]See Explanation. Clicking on the picture will download the highest
                        resolution version available.

                      The Southern Cliff in the Lagoon
    Image Credit: Julia I. Arias and Rodolfo H. Barba' ([3]Dept. Fisica,
      Univ. de La Serena), [4]ICATE-CONICET, [5]Gemini Observatory/AURA

   Explanation: Undulating bright ridges and dusty clouds cross [6]this
   close-up of the nearby star forming region M8, also known as the
   [7]Lagoon Nebula. A sharp, false-color composite of narrow band visible
   and broad band near-infrared data from the 8-meter [8]Gemini South
   Telescope, the entire view spans about 20 light-years through a region
   of the nebula sometimes called the Southern Cliff. The highly detailed
   image explores the association of many newborn stars imbedded in the
   tips of the bright-rimmed clouds and [9]Herbig-Haro objects. Abundant
   in star-forming regions, Herbig-Haro objects are produced as powerful
   jets emitted by young stars in the process of formation heat the
   [10]surrounding clouds of gas and dust. The cosmic Lagoon is found some
   5,000 light-years away toward the constellation [11]Sagittarius and the
   center of our Milky Way Galaxy. (For location and scale, [12]check out
   this image superimposing the close-up of the Southern Cliff within the
   larger [13]Lagoon Nebula. The scale image is courtesy R. Barba'.)

                       Tomorrow's picture: and beyond
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    Authors & editors: [25]Robert Nemiroff ([26]MTU) & [27]Jerry Bonnell
                                 ([28]UMCP)
          NASA Official: Phillip Newman [29]Specific rights apply.
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                A service of: [31]ASD at [32]NASA / [33]GSFC
                           & [34]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2105/M8_rim2geminicrop1024.jpg
   3. http://www.dfuls.cl/
   4. http://www.icate-conicet.gob.ar/
   5. http://www.gemini.edu/
   6. http://www.gemini.edu/node/11631
   7. https://apod.nasa.gov/apod/ap100805.html
   8. https://apod.nasa.gov/apod/ap060901.html
   9. http://en.wikipedia.org/wiki/Herbig-Haro_object
  10. https://apod.nasa.gov/apod/ap100819.html
  11. https://apod.nasa.gov/apod/ap090925.html
  12. https://apod.nasa.gov/apod/image/1105/m8_barba_scale_gemini.jpg
  13. https://apod.nasa.gov/apod/ap021006.html
  14. https://apod.nasa.gov/apod/ap210514.html
  15. https://apod.nasa.gov/apod/archivepix.html
  16. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  17. https://apod.nasa.gov/apod/lib/aptree.html
  18. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  19. https://apod.nasa.gov/apod/calendar/allyears.html
  20. https://apod.nasa.gov/apod.rss
  21. https://apod.nasa.gov/apod/lib/edlinks.html
  22. https://apod.nasa.gov/apod/lib/about_apod.html
  23. http://asterisk.apod.com/discuss_apod.php?date=210515
  24. https://apod.nasa.gov/apod/ap210516.html
  25. http://www.phy.mtu.edu/faculty/Nemiroff.html
  26. http://www.phy.mtu.edu/
  27. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  28. http://www.astro.umd.edu/
  29. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  30. https://www.nasa.gov/about/highlights/HP_Privacy.html
  31. https://astrophysics.gsfc.nasa.gov/
  32. https://www.nasa.gov/
  33. https://www.nasa.gov/centers/goddard/
  34. http://www.mtu.edu/