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 January 6

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

                     The Snows of Churyumov-Gerasimenko
             Images Credit: [3]ESA, [4]Rosetta, [5]MPS, OSIRIS;
                     UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA;
                      Animation: [6]Jacint Roger Perez

   Explanation: You couldn't really be caught in this blizzard while
   standing by a cliff on periodic comet [7]67P/Churyumov-Gerasimenko.
   Orbiting the comet in June of 2016, the [8]Rosetta spacecraft's narrow
   angle camera did record streaks of dust and ice particles similar to
   snow as they drifted across the field of view close to the camera and
   [9]above the comet's surface. Still, some of the [10]bright specks in
   the scene are likely due to a rain of energetic charged particles or
   [11]cosmic rays hitting the camera, and the dense background of stars
   in the direction of the constellation of the Big Dog ([12]Canis Major).
   [13]In the video, the background stars are easy to spot trailing from
   top to bottom. The stunning movie was constructed from 33
   [14]consecutive images taken over 25 minutes while Rosetta cruised some
   13 kilometers from [15]the comet's nucleus. In September 2016, the
   nucleus became the final resting place for the Rosetta spacecraft after
   its mission was ended with a successful controlled impact on
   [16]67P/Churyumov-Gerasimenko.

                      Tomorrow's picture: cats in space
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    Authors & editors: [28]Robert Nemiroff ([29]MTU) & [30]Jerry Bonnell
                                 ([31]UMCP)
          NASA Official: Phillip Newman [32]Specific rights apply.
              [33]NASA Web Privacy Policy and Important Notices
                A service of: [34]ASD at [35]NASA / [36]GSFC
                         [37]NASA Science Activation
                           & [38]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://www.youtube.com/embed/PpyPgJHKxSw?rel=0
   3. http://www.esa.int/
   4. http://rosetta.esa.int/
   5. http://www.mps.mpg.de/en
   6. https://twitter.com/landru79
   7. https://solarsystem.nasa.gov/asteroids-comets-and-meteors/comets/67p-churyumov-gerasimenko/in-depth/
   8. https://www.esa.int/Science_Exploration/Space_Science/Rosetta
   9. https://apod.nasa.gov/apod/ap170331.html
  10. https://www.newscientist.com/article/2167224-amazing-gif-shows-dust-and-cosmic-rays-raining-down-on-comet-67p/
  11. https://www.nasa.gov/press-release/goddard/2016/ace-cosmic-ray
  12. https://en.wikipedia.org/wiki/Canis_Major
  13. https://apod.nasa.gov/apod/image/1804/RosettaOsirisC67P_JacintRoger.gif
  14. https://imagearchives.esac.esa.int/index.php?/category/410/start-72#top
  15. https://apod.nasa.gov/apod/ap200127.html
  16. https://apod.nasa.gov/apod/ap211113.html
  17. https://apod.nasa.gov/apod/ap240105.html
  18. https://apod.nasa.gov/apod/archivepix.html
  19. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  20. https://apod.nasa.gov/apod/lib/aptree.html
  21. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  22. https://apod.nasa.gov/apod/calendar/allyears.html
  23. https://apod.nasa.gov/apod.rss
  24. https://apod.nasa.gov/apod/lib/edlinks.html
  25. https://apod.nasa.gov/apod/lib/about_apod.html
  26. http://asterisk.apod.com/discuss_apod.php?date=240106
  27. https://apod.nasa.gov/apod/ap240107.html
  28. http://www.phy.mtu.edu/faculty/Nemiroff.html
  29. http://www.phy.mtu.edu/
  30. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  31. http://www.astro.umd.edu/
  32. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  33. https://www.nasa.gov/about/highlights/HP_Privacy.html
  34. https://astrophysics.gsfc.nasa.gov/
  35. https://www.nasa.gov/
  36. https://www.nasa.gov/centers/goddard/
  37. https://science.nasa.gov/learners
  38. http://www.mtu.edu/