Astronomy Picture of the Day

                         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.

                               2018 December 10
                                      [2]
                  Sound and Light Captured by Mars InSight
                   Image Credit: NASA [3] / JPL-Caltech [4]

Explanation: Your arm on Mars has unusual powers. For one thing it [5]  is
nearly 2 meters long, has a scoop and grapple built into its [6]  hand, and
has a camera built into its [7]  forearm. For another, it will soon deploy
your ear -- a sensitive seismometer [8]  that will listen for distant
rumblings -- onto the surface of Mars. Your SEIS [9] momet-ear is the orange
box in the foreground, while the gray dome behind it will be its protective
cover. Your arm is attached to the InSight robotic lander [10]  that touched
down on Mars [11]  two weeks ago. Somewhat unexpectedly, your ear has already
heard something [12]  -- slight vibrations caused by the Martian wind [13]
flowing over the solar panels. Light from the Sun [14]  is being collected by
the solar panels [15] , part of one being visible on the far right. Actually,
at the present time, you have two arms [16]  operating on Mars, but they are
separated by about 600 kilometers. That's because your other active arm [17]
is connected to the Curiosity rover [18]  exploring a distant crater. Taken a
week ago, rusty soil [19]  and rocks are visible in the featured image [20]
beyond Insight, as well as the orange sky of Mars [21] .

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                    Tomorrow's picture: a tad pole galaxy

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    Authors & editors: Robert Nemiroff [37] (MTU [38] ) & Jerry Bonnell [39]
                                  (UMCP [40] )
          NASA Official:  Phillip Newman Specific rights apply [41] .
              NASA Web Privacy Policy and Important Notices [42]
              A service of: ASD [43]  at NASA [44]  / GSFC [45]
                           & Michigan Tech. U. [46]
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Site notes:
  [1] archivepix.html
  [2] image/1812/ArmSeismometer_InSight_1024.jpg
  [3] https://www.nasa.gov/
  [4] https://www.jpl.nasa.gov/
  [5] http://spaceflight101.com/insight/insight-instruments/
  [6]
https://www.universetoday.com/140817/insights-robot-arm-is-ready-to-go-to-work/
  [7] http://adsabs.harvard.edu/abs/2013ESASP.718E..14F
  [8] https://www.seis-insight.eu/en/public-2/seis-instrument/sp-seismometer
  [9] https://mars.nasa.gov/insight/spacecraft/instruments/seis/
  [10] https://mars.nasa.gov/insight/spacecraft/about-the-lander/
  [11] https://solarsystem.nasa.gov/planets/mars/overview/
  [12] https://www.jpl.nasa.gov/news/news.php?feature=7300
  [13] ap150303.html
  [14] https://solarsystem.nasa.gov/solar-system/sun/overview/
  [15] https://science.nasa.gov/science-news/science-at-nasa/2002/solarcells
  [16]
https://preview.redd.it/
sxuayziz716y.
jpg?width=960&crop=smart&auto=webp&s=097b903cf1661ce23891d7153406f37ab413f46b
  [17] ap120827.html
  [18] ap180623.html
  [19] https://www.nature.com/news/2004/040503/full/news040503-6.html
  [20] https://photojournal.jpl.nasa.gov/catalog/PIA22871
  [21] http://serious-science.org/what-color-is-the-sky-on-mars-7310
  [22] https://www.instagram.com/astronomypicturesdaily/
  [23] https://www.facebook.com/AstronomyPictureOfTheDay
  [24] https://www.reddit.com/r/apod
  [25] http://twitter.com/apod/
  [26] ap181209.html
  [27] archivepix.html
  [28] lib/apsubmit2015.html
  [29] lib/aptree.html
  [30] https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  [31] calendar/allyears.html
  [32] /apod.rss
  [33] lib/edlinks.html
  [34] lib/about_apod.html
  [35] http://asterisk.apod.com/discuss_apod.php?date=181210
  [36] ap181211.html
  [37] http://www.phy.mtu.edu/faculty/Nemiroff.html
  [38] http://www.phy.mtu.edu/
  [39] https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  [40] http://www.astro.umd.edu/
  [41] lib/about_apod.html#srapply
  [42] https://www.nasa.gov/about/highlights/HP_Privacy.html
  [43] https://astrophysics.gsfc.nasa.gov/
  [44] https://www.nasa.gov/
  [45] https://www.nasa.gov/centers/goddard/
  [46] http://www.mtu.edu/

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