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.

                              2026 September 13
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                 Comet NEOWISE Rising over the Adriatic Sea
                 Video Credit & Copyright: [2]Paolo Girotti

   Explanation: This sight was worth getting out of bed early. Just over
   four years ago, [3]Comet C/2020 F3 (NEOWISE) rose before dawn to the
   [4]delight of northern sky enthusiasts awake that early. Up before
   sunrise on July 8th, the featured photographer was able to capture in
   dramatic fashion one of the few comets [5]visible to the unaided eye
   this century, an inner-[6]Solar System intruder that has become known
   as the [7]Great Comet of 2020. The [8]resulting video detailed Comet
   NEOWISE from [9]Italy rising over the [10]Adriatic Sea. The
   [11]featured time-lapse video combines over 240 images taken over 30
   minutes. [12]The comet was seen rising through a foreground of bright
   and undulating [13]noctilucent clouds, and before a background of
   distant stars. [14]Comet NEOWISE remained unexpectedly bright for over
   a month, with its [15]ion and dust tails [16]found to emanate from a
   [17]nucleus spanning about five kilometers across.

       APOD's main NASA site is [18]moving: From [19]apod.nasa.gov to
                          [20]science.nasa.gov/apod
                      Tomorrow's picture: elemental you
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    Authors & editors: [32]Robert Nemiroff ([33]MTU) & [34]Jerry Bonnell
                                 ([35]UMCP)
          NASA Official: Amber Straughn [36]Specific rights apply.
            [37]NASA Web Privacy, [38]Accessibility, [39]Notices;
                A service of: [40]ASD at [41]NASA / [42]GSFC,
                         [43]NASA Science Activation
                           & [44]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://www.instagram.com/astrogyres/
   3. https://en.wikipedia.org/wiki/C/2020_F3_(NEOWISE)
   4. https://unsplash.com/photos/brown-tabby-cat-7GX5aICb5i4
   5. https://www.facebook.com/media/set/?vanity=APOD.Sky&set=a.2762832093820992
   6. https://science.nasa.gov/solar-system/
   7. https://apod.nasa.gov/apod/ap131013.html
   8. https://www.instagram.com/p/CCXz9yUIOQb/
   9. https://en.wikipedia.org/wiki/Italy
  10. https://en.wikipedia.org/wiki/Adriatic_Sea
  11. https://www.youtube.com/embed/ts0Ek3nLHew
  12. https://apod.nasa.gov/apod/ap200707.html
  13. https://en.wikipedia.org/wiki/Noctilucent_cloud
  14. https://earthsky.org/space/how-to-see-comet-c2020-f3-neowise
  15. https://apod.nasa.gov/apod/ap210308.html
  16. https://www.nasa.gov/feature/jpl/comet-neowise-sizzles-as-it-slides-by-the-sun-providing-a-treat-for-observers
  17. https://apod.nasa.gov/apod/ap100104.html
  18. https://asterisk.apod.com/viewtopic.php?t=45023
  19. https://apod.nasa.gov/
  20. https://science.nasa.gov/apod
  21. https://apod.nasa.gov/apod/ap260912.html
  22. https://apod.nasa.gov/apod/archivepix.html
  23. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  24. https://apod.nasa.gov/apod/lib/aptree.html
  25. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  26. https://apod.nasa.gov/apod/calendar/allyears.html
  27. https://apod.com/feed.rss
  28. https://apod.nasa.gov/apod/lib/edlinks.html
  29. https://apod.nasa.gov/apod/lib/about_apod.html
  30. https://asterisk.apod.com/discuss_apod.php?date=260913
  31. https://apod.nasa.gov/apod/ap260914.html
  32. https://www.mtu.edu/physics/department/faculty/nemiroff/
  33. https://www.mtu.edu/physics/
  34. https://inspirehep.net/authors/1073087
  35. http://www.astro.umd.edu/
  36. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  37. https://www.nasa.gov/about/highlights/HP_Privacy.html
  38. https://www.nasa.gov/general/accessibility/
  39. https://www.nasa.gov/privacy/
  40. https://science.gsfc.nasa.gov/astrophysics/
  41. https://www.nasa.gov/
  42. https://www.nasa.gov/centers/goddard/
  43. https://science.nasa.gov/learn/about-science-activation/
  44. http://www.mtu.edu/