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.

                                  2019 May 12
                                      [2]
                Ash and Lightning above an Icelandic Volcano
              Image Credit & Copyright: Sigur≡ur Stefnisson [3]

Explanation: Why did a picturesque volcanic eruption [4]  in Iceland create so
much ash? Although the large ash [5] plume was not unparalleled in its
abundance, its location was particularly noticeable [6]  because it drifted
across [7]  such well-populated areas. The Eyjafjallajökull [8] volcano in
southern Iceland began erupting [9] on 2010 March 20, with a second eruption
[10]  starting under the center of a small glacier on 2010 April 14. Neither
eruption was unusually powerful [11] . The second eruption, however, melted a
large amount of glacial ice [12] which then cooled and fragmented lava [13]
into gritty glass particles that were carried up with the rising volcanic [14]
 plume. Pictured here [15] during the second eruption, lightning bolts [16]
illuminate ash pouring out [17]  of the Eyjafjallajökull volcano [18] .

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                 Tomorrow's picture: mult-colored star clouds

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    Authors & editors: Robert Nemiroff [34] (MTU [35] ) & Jerry Bonnell [36]
                                  (UMCP [37] )
          NASA Official:  Phillip Newman Specific rights apply [38] .
              NASA Web Privacy Policy and Important Notices [39]
              A service of: ASD [40]  at NASA [41]  / GSFC [42]
                           & Michigan Tech. U. [43]
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Site notes:
  [1] archivepix.html
  [2] image/1905/volcano_stefnisson_960.jpg
  [3] https://www.stefnisson.com
  [4] https://en.wikipedia.org/wiki/2010_eruption_o...ökull
  [5] https://en.wikipedia.org/wiki/Volcanic_ash
  [6] https://www.youtube.com/watch?v=f1ztg0wUqKY
  [7]
https://en.wikipedia.org/wiki/
File:Eyjafjallajökull_volcanic_ash_17_April_2010.png
  [8] https://en.wikipedia.org/wiki/Eyjafjallajökull
  [9] https://spaceplace.nasa.gov/volcanoes2/en/
  [10] https://www.youtube.com/watch?v=lINmtRiWQ7Q
  [11]
https://www.popsci.com/environment/article/20...
  [12] https://en.wikipedia.org/wiki/Glacier
  [13] ap070918.html
  [14] ap060607.html
  [15]
https://www.flickr.com/photos/stefnisson/4535...
  [16] ap100210.html
  [17] ap100419.html
  [18] https://www.youtube.com/watch?v=e-TMtRh8AIs
  [19] https://www.instagram.com/astronomypicturesda...
  [20] https://www.facebook.com/AstronomyPictureOfTh...
  [21] https://www.reddit.com/r/apod
  [22] http://twitter.com/apod/
  [23] ap190511.html
  [24] archivepix.html
  [25] lib/apsubmit2015.html
  [26] lib/aptree.html
  [27] https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apo...
  [28] calendar/allyears.html
  [29] /apod.rss
  [30] lib/edlinks.html
  [31] lib/about_apod.html
  [32] http://asterisk.apod.com/discuss_apod.php?dat...
  [33] ap190513.html
  [34] http://www.phy.mtu.edu/faculty/Nemiroff.html
  [35] http://www.phy.mtu.edu/
  [36] https://antwrp.gsfc.nasa.gov/htmltest/jbonnel...
  [37] http://www.astro.umd.edu/
  [38] lib/about_apod.html#srapply
  [39] https://www.nasa.gov/about/highlights/HP_Priv...
  [40] https://astrophysics.gsfc.nasa.gov/
  [41] https://www.nasa.gov/
  [42] https://www.nasa.gov/centers/goddard/
  [43] http://www.mtu.edu/

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 * Origin: FIDONet - The Positronium Repository (1:393/68)