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.

                                2024 March 25

           IFRAME: [2]https://youtube.com/embed/NqBfQeJqkfU?rel=0

              Sonified: The Jellyfish Nebula Supernova Remnant
    Image Credit: X-ray (blue): [3]Chandra ([4]NASA) & [5]ROSAT ([6]ESA);
      Optical (red): [7]DSS ([8]NSF); Radio (green): [9]VLA ([10]NRAO,
     [11]NSF); Sonification: [12]NASA, [13]CXC, [14]SAO, [15]K. Arcand;
               SYSTEM Sounds: [16]M. Russo, [17]A. Santaguida)

   Explanation: What does a supernova remnant sound like? Although
   [18]sound is a compression wave in matter and does not carry into
   [19]empty space, [20]interpretive sound can help listeners appreciate
   and understand a visual image of a [21]supernova remnant in a new way.
   Recently, the Jellyfish Nebula ([22]IC 443) has been sonified quite
   creatively. In the [23]featured sound-enhanced video, when an imaginary
   line passes over a star, [24]the sound of a drop falling into water is
   played, a sound particularly relevant to the nebula's [25]aquatic
   namesake. Additionally, when the descending line crosses gas that glows
   red, a low [26]tone is played, while green sounds a middle tone, and
   blue produces a tone with a relatively high [27]pitch. Light from the
   supernova that created the [28]Jellyfish Nebula left approximately
   35,000 years ago, when [29]humanity was in the [30]stone age. The
   nebula will slowly disperse over the next million years, although the
   [31]explosion also created a dense [32]neutron star which will remain
   indefinitely.

                       Tomorrow's picture: comet tails
     __________________________________________________________________

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    Authors & editors: [44]Robert Nemiroff ([45]MTU) & [46]Jerry Bonnell
                                 ([47]UMCP)
          NASA Official: Amber Straughn [48]Specific rights apply.
            [49]NASA Web Privacy, [50]Accessibility, [51]Notices;
                A service of: [52]ASD at [53]NASA / [54]GSFC,
                         [55]NASA Science Activation
                           & [56]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://youtube.com/embed/NqBfQeJqkfU?rel=0
   3. https://chandra.harvard.edu/
   4. https://www.nasa.gov/
   5. https://en.wikipedia.org/wiki/ROSAT
   6. https://www.esa.int/
   7. https://en.wikipedia.org/wiki/Digitized_Sky_Survey
   8. https://www.nsf.gov/
   9. https://public.nrao.edu/visit/very-large-array/
  10. https://nrao.edu/
  11. https://nsf.gov/
  12. https://www.nasa.gov/
  13. https://cxc.harvard.edu/
  14. https://pweb.cfa.harvard.edu/about/about-smithsonian-astrophysical-observatory
  15. https://pweb.cfa.harvard.edu/people/kimberly-k-arcand
  16. https://www.astromattrusso.com/
  17. https://www.system-sounds.com/about-2/
  18. https://method-behind-the-music.com/mechanics/physics/
  19. https://apod.nasa.gov/apod/ap151206.html
  20. https://apod.nasa.gov/apod/ap201216.html
  21. https://imagine.gsfc.nasa.gov/science/objects/supernova_remnants.html
  22. https://en.wikipedia.org/wiki/IC_443
  23. https://chandra.harvard.edu/photo/2024/sonify8/
  24. https://plus.nasa.gov/video/listen-to-the-universe/
  25. https://en.wikipedia.org/wiki/Jellyfish
  26. https://en.wikipedia.org/wiki/Musical_tone
  27. https://en.wikipedia.org/wiki/Pitch_(music)
  28. https://youtu.be/ysZK_tNeh38
  29. https://apod.nasa.gov/apod/ap190818.html
  30. https://farm5.static.flickr.com/4030/4261235446_1ab55b702b_o.png
  31. https://youtu.be/wymMn-SmALY
  32. https://science.nasa.gov/universe/neutron-stars-are-weird/
  33. https://apod.nasa.gov/apod/ap240324.html
  34. https://apod.nasa.gov/apod/archivepix.html
  35. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  36. https://apod.nasa.gov/apod/lib/aptree.html
  37. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  38. https://apod.nasa.gov/apod/calendar/allyears.html
  39. https://apod.com/feed.rss
  40. https://apod.nasa.gov/apod/lib/edlinks.html
  41. https://apod.nasa.gov/apod/lib/about_apod.html
  42. https://asterisk.apod.com/discuss_apod.php?date=240325
  43. https://apod.nasa.gov/apod/ap240326.html
  44. http://www.phy.mtu.edu/faculty/Nemiroff.html
  45. http://www.phy.mtu.edu/
  46. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  47. http://www.astro.umd.edu/
  48. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  49. https://www.nasa.gov/about/highlights/HP_Privacy.html
  50. https://www.nasa.gov/general/accessibility/
  51. https://www.nasa.gov/privacy/
  52. https://astrophysics.gsfc.nasa.gov/
  53. https://www.nasa.gov/
  54. https://www.nasa.gov/centers/goddard/
  55. https://science.nasa.gov/learners
  56. http://www.mtu.edu/