                  APOD: 2017 July 18 - Thunder Moon over Pisa

                         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 July 18
                                      [2]
                            Thunder Moon over Pisa
                  Image Credit & Copyright: Marco Meniero [3]

Explanation: What's wrong with this picture? If you figure it out, you may
then realize where the image was taken [4] . The oddity [5]  lies actually in
one of the buildings -- it leans. The Leaning Tower of Pisa [6]  has been an
iconic legend [7] since shortly after its construction began in the year 117
[8] 3. Now part of a UNESCO [9] World Heritage Site [10] , folklore [11]
holds that Galileo [12] used the leaning tower to dramatically demonstrate the
gravitational principle [13]  that objects of different mass fall the same
[14] . Between the Leaning Tower of Pisa [15]  on the right and Pisa Cathedral
[16]  and the Pisa Baptistery [17] on the left, a full "Thunder" moon was
visible last week when the image was taken. Using modern analyses [18] , the
tower has been successfully stabilized [19]  and, barring the unexpected,
should hold its present tilt for the next 200 years.

              Indonesia: New APOD Mirror Site in Indonesian [20]
                 Tomorrow's picture: Ireson hill on Mars [21]

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    Authors & editors: Robert Nemiroff [33] (MTU [34] ) & Jerry Bonnell [35]
                                  (UMCP [36] )
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              A service of: ASD [39]  at NASA [40]  / GSFC [41]
                           & Michigan Tech. U. [42]
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Site notes:
  [1] archivepix.html
  [2] image/1707/ThunderMoonPisa_Meniero_5760.jpg
  [3] http://www.meniero.it/profile/profile.php?lang=it
  [4] https://en.wikipedia.org/wiki/Pisa
  [5] http://i.huffpost.com/gen/1279734/images/o-DOG-COCKED-HEAD-facebook.jpg
  [6] https://en.wikipedia.org/wiki/Leaning_Tower_of_Pisa
  [7] ap160201.html
  [8] https://en.wikipedia.org/wiki/1170s
  [9] http://en.unesco.org/about-us/introducing-unesco
  [10] http://whc.unesco.org/en/list/
  [11] https://www.pbs.org/wgbh/nova/pisa/galileo.html
  [12] http://solar-center.stanford.edu/galileo/
  [13]
https://science.nasa.gov/science-news/science-at-nasa/2007/
18may_equivalenceprinciple
  [14] https://apod.nasa.gov/apod/ap111101.html
  [15] https://www.youtube.com/watch?v=8Kmw1ZtyCjA
  [16] https://en.wikipedia.org/wiki/Pisa_Cathedral
  [17] https://en.wikipedia.org/wiki/Pisa_Baptistery
  [18] http://madridengineering.com/case-study-the-leaning-tower-of-pisa/
  [19]
http://science.howstuffworks.com/engineering/structural/
will-leaning-tower-of-pisa-fall.htm
  [20] http://apod.infoastronomy.org/
  [21] ap170719.html
  [22] ap170717.html
  [23] archivepix.html
  [24] lib/apsubmit2015.html
  [25] lib/aptree.html
  [26] https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  [27] calendar/allyears.html
  [28] /apod.rss
  [29] lib/edlinks.html
  [30] lib/about_apod.html
  [31] http://asterisk.apod.com/discuss_apod.php?date=170718
  [32] ap170719.html
  [33] http://www.phy.mtu.edu/faculty/Nemiroff.html
  [34] http://www.phy.mtu.edu/
  [35] https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  [36] http://www.astro.umd.edu/
  [37] lib/about_apod.html#srapply
  [38] https://www.nasa.gov/about/highlights/HP_Privacy.html
  [39] https://astrophysics.gsfc.nasa.gov/
  [40] https://www.nasa.gov/
  [41] https://www.nasa.gov/centers/goddard/
  [42] http://www.mtu.edu/
