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.

                               2019 November 1
    [2]See Explanation. Clicking on the picture will download the highest
                        resolution version available.

                             The Day After Mars
       Image Credit & [3]Copyright: Rolando Ligustri ([4]CARA Project,
                                  [5]CAST)

   Explanation: October 31, 1938 was the day after Martians encountered
   planet Earth, and everything was calm. Reports of the invasion were
   revealed to be part of a Halloween radio drama, the now famous
   broadcast based on H.G. Wells' scifi novel [6]War of the Worlds. On
   Mars October 20, 2014 was calm too, the day after its close encounter
   with [7]Comet Siding Spring (C/2013 A1). Not a hoax, this comet really
   did come within 86,700 miles or so of Mars, about 1/3 the Earth-Moon
   distance. [8]Earth's spacecraft and rovers in Mars orbit and on the
   surface reported no ill effects though, and had a ringside seat as a
   visitor from the [9]outer solar system passed by. Spanning over 2
   degrees against stars of the constellation Ophiuchus, [10]this colorful
   telescopic snapshot captures our view of Mars on the day after. Bluish
   star [11]51 Ophiuchi is at the upper right and the comet is just
   emerging from the Red Planet's bright glare.

                    Tomorrow's picture: inside the flame
     __________________________________________________________________

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    Authors & editors: [23]Robert Nemiroff ([24]MTU) & [25]Jerry Bonnell
                                 ([26]UMCP)
          NASA Official: Phillip Newman [27]Specific rights apply.
              [28]NASA Web Privacy Policy and Important Notices
                A service of: [29]ASD at [30]NASA / [31]GSFC
                           & [32]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/1911/MarsSSdayafter_ligustri_astroligu60.jpg
   3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
   4. http://cara.uai.it/
   5. http://www.castfvg.it/
   6. http://en.wikipedia.org/wiki/The_War_of_the_Worlds_(radio_drama)
   7. https://mars.nasa.gov/comets/sidingspring/
   8. http://www.nasa.gov/jpl/comet-siding-spring/
   9. https://solarsystem.nasa.gov/solar-system/kuiper-belt/in-depth/
  10. http://www.astrobin.com/130093/
  11. http://www.nasa.gov/centers/goddard/news/topstory/2009/dust_disks.html
  12. https://apod.nasa.gov/apod/ap191031.html
  13. https://apod.nasa.gov/apod/archivepix.html
  14. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  15. https://apod.nasa.gov/apod/lib/aptree.html
  16. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  17. https://apod.nasa.gov/apod/calendar/allyears.html
  18. https://apod.nasa.gov/apod.rss
  19. https://apod.nasa.gov/apod/lib/edlinks.html
  20. https://apod.nasa.gov/apod/lib/about_apod.html
  21. http://asterisk.apod.com/discuss_apod.php?date=191101
  22. https://apod.nasa.gov/apod/ap191102.html
  23. http://www.phy.mtu.edu/faculty/Nemiroff.html
  24. http://www.phy.mtu.edu/
  25. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  26. http://www.astro.umd.edu/
  27. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  28. https://www.nasa.gov/about/highlights/HP_Privacy.html
  29. https://astrophysics.gsfc.nasa.gov/
  30. https://www.nasa.gov/
  31. https://www.nasa.gov/centers/goddard/
  32. http://www.mtu.edu/