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.

                               2025 January 22
     [2]A star field is dominated by a red and blue glowing nebula. This
    nebula appears, to some, to have the shape of North America and so is
    called the North America Nebula. Please see the explanation for more
                            detailed information.

                          The North America Nebula
               Image Credit & Copyright: [3]Dimitris Valianos

   Explanation: The [4]North America nebula on the sky can do what the
   [5]North America continent on Earth cannot -- form stars. Specifically,
   in analogy to the Earth-confined continent, the bright part that
   appears as the [6]east coast is actually a hot bed of gas, dust, and
   newly formed stars known as the [7]Cygnus Wall. The [8]featured image
   shows the star forming wall [9]lit and eroded by [10]bright young stars
   and [11]partly hidden by the dark [12]dust they have created. The part
   of the [13]North America nebula (NGC 7000) shown spans about 50
   [14]light years and lies about 1,500 light years away toward the
   [15]constellation of the Swan ([16]Cygnus).

              Jigsaw Challenge: [17]Astronomy Puzzle of the Day
                 Tomorrow's picture: little hat, big galaxy
     __________________________________________________________________

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     __________________________________________________________________

    Authors & editors: [29]Robert Nemiroff ([30]MTU) & [31]Jerry Bonnell
                                 ([32]UMCP)
          NASA Official: Amber Straughn [33]Specific rights apply.
            [34]NASA Web Privacy, [35]Accessibility, [36]Notices;
                A service of: [37]ASD at [38]NASA / [39]GSFC,
                         [40]NASA Science Activation
                           & [41]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2501/NGC7000_Valianos_3132.jpg
   3. https://www.facebook.com/dimitris.valianos.33/
   4. https://en.wikipedia.org/wiki/North_America_Nebula
   5. https://en.wikipedia.org/wiki/North_America
   6. https://apod.nasa.gov/apod/ap160224.html
   7. https://apod.nasa.gov/apod/ap161011.html
   8. https://www.facebook.com/photo/?fbid=8815926978442390&set=a.152943591407482
   9. https://apod.nasa.gov/apod/ap241022.html
  10. https://apod.nasa.gov/apod/ap211124.html
  11. http://blogs.nvidia.co.kr/wp-content/uploads/sites/16/2017/12/닙스4.jpg
  12. https://astronomy.swin.edu.au/cosmos/d/Dust+Grain
  13. https://apod.nasa.gov/apod/ap090630.html
  14. https://spaceplace.nasa.gov/light-year/
  15. https://en.wikipedia.org/wiki/Constellation
  16. http://www.hawastsoc.org/deepsky/cyg/index.html
  17. https://www.scigames.org/apps/webjigsaw2/index.php
  18. https://apod.nasa.gov/apod/ap250121.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.com/feed.rss
  25. https://apod.nasa.gov/apod/lib/edlinks.html
  26. https://apod.nasa.gov/apod/lib/about_apod.html
  27. https://asterisk.apod.com/discuss_apod.php?date=250122
  28. https://apod.nasa.gov/apod/ap250123.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://www.nasa.gov/general/accessibility/
  36. https://www.nasa.gov/privacy/
  37. https://astrophysics.gsfc.nasa.gov/
  38. https://www.nasa.gov/
  39. https://www.nasa.gov/centers/goddard/
  40. https://science.nasa.gov/learners
  41. http://www.mtu.edu/