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.

                                 2022 May 9

         IFRAME: [2]https://www.youtube.com/embed/aKK7vS2CHC8?rel=0

                  A Martian Eclipse: Phobos Crosses the Sun
        Video Credit: [3]NASA, [4]JPL-Caltech, [5]ASU [6]MSSS, [7]SSI

   Explanation: What's that passing in front of the Sun? It looks like a
   moon, but it can't be [8]Earth's Moon, because it isn't round. It's the
   Martian moon [9]Phobos. The [10]featured video was taken from the
   [11]surface of Mars a month ago by the Perseverance rover. [12]Phobos,
   at 11.5 kilometers across, is 150 times smaller than [13]Luna (our
   moon) in diameter, but also 50 times closer to its [14]parent planet.
   In fact, [15]Phobos is [16]so close to Mars that [17]it is expected to
   break up and crash into [18]Mars within the next 50 million years. In
   the near term, the low orbit of [19]Phobos results in more rapid solar
   eclipses than seen from [20]Earth. The [21]featured video is shown in
   real time -- the transit [22]really took about 40 seconds,as shown. The
   videographer -- the [23]robotic rover Perseverance (Percy) -- continues
   to explore [24]Jezero Crater on [25]Mars, searching not only for clues
   to the watery history of the [26]now dry world, but evidence of
   [27]ancient microbial life.

            New Social Mirror: [28]APOD now available on mastodon
                     Tomorrow's picture: giant space paw
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    Authors & editors: [40]Robert Nemiroff ([41]MTU) & [42]Jerry Bonnell
                                 ([43]UMCP)
          NASA Official: Phillip Newman [44]Specific rights apply.
              [45]NASA Web Privacy Policy and Important Notices
                A service of: [46]ASD at [47]NASA / [48]GSFC
                           & [49]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://www.youtube.com/embed/aKK7vS2CHC8?rel=0
   3. https://www.nasa.gov/
   4. https://www.jpl.nasa.gov/
   5. https://mastcamz.asu.edu/
   6. https://www.msss.com/
   7. https://www.spacescience.org/
   8. https://solarsystem.nasa.gov/moons/earths-moon/overview/
   9. https://solarsystem.nasa.gov/moons/mars-moons/phobos/in-depth/
  10. https://www.jpl.nasa.gov/news/nasas-perseverance-rover-captures-video-of-solar-eclipse-on-mars
  11. https://apod.nasa.gov/apod/ap131208.html
  12. https://en.wikipedia.org/wiki/Phobos_(moon)
  13. https://apod.nasa.gov/apod/ap180604.html
  14. https://apod.nasa.gov/apod/ap160529.html
  15. https://apod.nasa.gov/apod/ap181125.html
  16. https://apod.nasa.gov/apod/ap101201.html
  17. https://apod.nasa.gov/apod/ap110124.html
  18. https://solarsystem.nasa.gov/planets/mars/overview/
  19. https://apod.nasa.gov/apod/ap151122.html
  20. https://solarsystem.nasa.gov/planets/earth/overview/
  21. https://photojournal.jpl.nasa.gov/catalog/PIA25179
  22. https://www.petplace.com/static/c90c1409bcddbbe337138f3bb2f63667/ac7fd/shutterstock_246058558-1.png
  23. https://mars.nasa.gov/mars2020/
  24. https://mars.nasa.gov/mars2020/mission/science/landing-site/
  25. https://spaceplace.nasa.gov/all-about-mars/en/
  26. https://apod.nasa.gov/apod/ap190314.html
  27. https://www.nasa.gov/feature/jpl/searching-for-life-in-nasa-s-perseverance-mars-samples
  28. https://botsin.space/@APoD/media
  29. https://apod.nasa.gov/apod/ap220508.html
  30. https://apod.nasa.gov/apod/archivepix.html
  31. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  32. https://apod.nasa.gov/apod/lib/aptree.html
  33. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  34. https://apod.nasa.gov/apod/calendar/allyears.html
  35. https://apod.nasa.gov/apod.rss
  36. https://apod.nasa.gov/apod/lib/edlinks.html
  37. https://apod.nasa.gov/apod/lib/about_apod.html
  38. http://asterisk.apod.com/discuss_apod.php?date=220509
  39. https://apod.nasa.gov/apod/ap220510.html
  40. http://www.phy.mtu.edu/faculty/Nemiroff.html
  41. http://www.phy.mtu.edu/
  42. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  43. http://www.astro.umd.edu/
  44. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  45. https://www.nasa.gov/about/highlights/HP_Privacy.html
  46. https://astrophysics.gsfc.nasa.gov/
  47. https://www.nasa.gov/
  48. https://www.nasa.gov/centers/goddard/
  49. http://www.mtu.edu/