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.

                               2023 January 15
   [2]A messy array of colorful filaments is shown in front of a field of
      stars. Please see the explanation for more detailed information.

                       M1: The Crab Nebula from Hubble
    Image Credit: [3]NASA, [4]ESA, [5]Hubble, J. Hester, A. Loll ([6]ASU)

   Explanation: This is the mess that is left when a star explodes. The
   [7]Crab Nebula, the result of a [8]supernova seen in [9]1054 AD, is
   filled with [10]mysterious filaments. The [11]filaments are not only
   tremendously complex, but appear to have [12]less mass than expelled in
   the original supernova and a [13]higher speed than expected from a free
   explosion. The [14]featured image, taken by the [15]Hubble Space
   Telescope, is [16]presented in three colors chosen for [17]scientific
   interest. The [18]Crab Nebula spans about 10 [19]light-years. In
   [20]the nebula's very center lies a [21]pulsar: a [22]neutron star as
   massive as the [23]Sun but with only the size of a [24]small town. The
   [25]Crab Pulsar rotates about 30 times each second.

    Discovery + Outreach: [26]Graduate student research position open for
                                    APOD
                     Tomorrow's picture: Moon, enhanced
     __________________________________________________________________

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     __________________________________________________________________

    Authors & editors: [38]Robert Nemiroff ([39]MTU) & [40]Jerry Bonnell
                                 ([41]UMCP)
          NASA Official: Phillip Newman [42]Specific rights apply.
              [43]NASA Web Privacy Policy and Important Notices
                A service of: [44]ASD at [45]NASA / [46]GSFC,
                         [47]NASA Science Activation
                           & [48]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2301/CrabNebula_Hubble_3864.jpg
   3. https://www.nasa.gov/
   4. https://esa.int/hubble/
   5. https://www.nasa.gov/mission_pages/hubble/story/index.html
   6. http://sese.asu.edu/
   7. https://www.nasa.gov/feature/goddard/2017/messier-1-the-crab-nebula
   8. https://imagine.gsfc.nasa.gov/science/objects/supernovae1.html
   9. http://messier.seds.org/more/m001_sn.html
  10. http://www.youtube.com/watch?v=5VnJ9pRR8-8
  11. https://apod.nasa.gov/apod/ap980208.html
  12. https://ui.adsabs.harvard.edu/abs/1995ApJ...454L.129F/abstract
  13. https://ui.adsabs.harvard.edu/abs/1998PASP..110..831N/abstract
  14. https://www.spacetelescope.org/images/heic0515a/
  15. https://www.nasa.gov/mission_pages/hubble/story/index.html
  16. https://www.youtube.com/watch?v=_2Fte8xkTpo
  17. http://s9.favim.com/orig/131225/cat-galaxy-glasses-Favim.com-1181244.jpg
  18. https://en.wikipedia.org/wiki/Crab_Nebula
  19. https://starchild.gsfc.nasa.gov/docs/StarChild/questions/question19.html
  20. https://www.youtube.com/watch?v=vPxLVgTIAbk
  21. http://www.jb.man.ac.uk/~pulsar/Education/Sounds/sounds.html
  22. https://www.astro.umd.edu/~miller/nstar.html
  23. https://solarsystem.nasa.gov/solar-system/sun/in-depth/
  24. https://www.cityofhoughton.com/
  25. https://apod.nasa.gov/apod/ap020920.html
  26. http://asterisk.apod.com/viewtopic.php?t=42847
  27. https://apod.nasa.gov/apod/ap230114.html
  28. https://apod.nasa.gov/apod/archivepix.html
  29. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  30. https://apod.nasa.gov/apod/lib/aptree.html
  31. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  32. https://apod.nasa.gov/apod/calendar/allyears.html
  33. https://apod.nasa.gov/apod.rss
  34. https://apod.nasa.gov/apod/lib/edlinks.html
  35. https://apod.nasa.gov/apod/lib/about_apod.html
  36. http://asterisk.apod.com/discuss_apod.php?date=230115
  37. https://apod.nasa.gov/apod/ap230116.html
  38. http://www.phy.mtu.edu/faculty/Nemiroff.html
  39. http://www.phy.mtu.edu/
  40. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  41. http://www.astro.umd.edu/
  42. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  43. https://www.nasa.gov/about/highlights/HP_Privacy.html
  44. https://astrophysics.gsfc.nasa.gov/
  45. https://www.nasa.gov/
  46. https://www.nasa.gov/centers/goddard/
  47. https://science.nasa.gov/learners
  48. http://www.mtu.edu/