          APOD: 2017 September 4 - Saturns Rings from the Inside Out

                         Astronomy Picture of the Day

    Discover the cosmos! [1] Each day a different image or photograph of our
 fascinating universe is featured, along with a brief explanation written by a
                           professional astronomer.

                               2017 September 4
                                      [2]
                      Saturn's Rings from the Inside Out
    Video Credit: NASA [3] , JPL-Caltech [4] , Space Science Institute [5]

Explanation: What do Saturn's rings look like from Saturn? Images from the
robotic spacecraft Cassini [6] are providing humanity [7]  with this
unprecedented vantage point as it nears the completion of its mission.
Previous to Cassini's Grand Finale orbits [8] , all images of Saturn's
majestic ring [9] system were taken from outside of the rings looking in [10]
. Pictured in the inset is the remarkable video [11] , while the spacecraft's
positions are depicted in the surrounding animation. Details of the complex
rings [12]  are evident as the short time-lapse sequence begins, while the
paper-thin thickness [13]  of the rings becomes apparent near the video's end.
The featured images were taken on August 20. Cassini has only a few more [14]
orbits around Saturn left before it is directed to dive into the giant planet
[15]  on September 15.

                 Tomorrow's picture: voyage to the spots [16]

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    Authors & editors: Robert Nemiroff [28] (MTU [29] ) & Jerry Bonnell [30]
                                  (UMCP [31] )
          NASA Official:  Phillip Newman Specific rights apply [32] .
              NASA Web Privacy Policy and Important Notices [33]
              A service of: ASD [34]  at NASA [35]  / GSFC [36]
                           & Michigan Tech. U. [37]
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Site notes:
  [1] archivepix.html
  [2] image/1709/InsideSaturnsRings_Cassini_1280.gif
  [3] https://www.nasa.gov/
  [4] http://www.jpl.nasa.gov
  [5] http://www.spacescience.org/index.php
  [6] https://saturn.jpl.nasa.gov/the-journey/the-spacecraft/
  [7] ap100725.html
  [8] https://apod.nasa.gov/apod/ap170125.html
  [9] https://saturn.jpl.nasa.gov/science/rings/
  [10] https://cdn0.littlethings.com/app/uploads/2014/09/everyone.jpg
  [11] https://photojournal.jpl.nasa.gov/catalog/PIA21886
  [12] ap161124.html
  [13]
http://www.slate.com/blogs/bad_astronomy/2014/05/02/
saturn_s_rings_to_scale_thinner_than_paper.html
  [14] https://www.youtube.com/watch?v=xrGAQCq9BMU
  [15] https://saturn.jpl.nasa.gov/mission/grand-finale/overview/
  [16] ap170905.html
  [17] ap170903.html
  [18] archivepix.html
  [19] lib/apsubmit2015.html
  [20] lib/aptree.html
  [21] https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  [22] calendar/allyears.html
  [23] /apod.rss
  [24] lib/edlinks.html
  [25] lib/about_apod.html
  [26] http://asterisk.apod.com/discuss_apod.php?date=170904
  [27] ap170905.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] 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] http://www.mtu.edu/
