              APOD: 2017 August 26 - Hurricane Harvey Strengthens

                         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 August 26
                        Hurricane Harvey Strengthens
                   Video Credit: NASA-NOAA GOES Project [2]

Explanation: A large and dangerous hurricane has developed in the Gulf of
Mexico. The featured time-lapse video [3] shows Hurricane Harvey [4] growing
to Category 4 [5] strength over the past few days, as captured by NASA [6]
and NOAA [7] 's GOES [8] -East satellite. Starting as a slight dip in air
pressure [9] , hurricanes [10] swell into expansive spiraling storm systems
[11] , complete with high [12] winds [13]  and driving rain. Hurricanes are
powered by [14]  evaporating ocean water, and so typically gain strength [15]
over warm water and lose strength over land. Much remains unknown about
hurricanes and cyclones [16] , including details of how they are formed [17]
and the exact path they will take. Hurricane Harvey [18] , accompanied by a
dangerous storm surge [19] , is expected to make landfall sometime today in
Texas [20] .

                   Tomorrow's picture: heart chemicals [21]

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    Authors & editors: Robert Nemiroff [33] (MTU [34] ) & Jerry Bonnell [35]
                                  (UMCP [36] )
          NASA Official:  Phillip Newman Specific rights apply [37] .
              NASA Web Privacy Policy and Important Notices [38]
              A service of: ASD [39]  at NASA [40]  / GSFC [41]
                           & Michigan Tech. U. [42]
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Site notes:
  [1] archivepix.html
  [2] https://goes.gsfc.nasa.gov/
  [3] https://www.youtube.com/watch?v=vX4cf19h7iA
  [4] https://en.wikipedia.org/wiki/Hurricane_Harvey_(2017)
  [5] http://www.nhc.noaa.gov/aboutsshws.php
  [6] https://www.nasa.gov
  [7] http://www.noaa.gov/
  [8]
https://en.wikipedia.org/wiki/Geostationary_Operational_Environmental_Satellite
  [9] https://en.wikipedia.org/wiki/Atmospheric_pressure
  [10] http://www.aoml.noaa.gov/hrd/tcfaq/tcfaqHED.html
  [11] ap161009.html
  [12] https://www.youtube.com/watch?v=rKUipxR3bDc
  [13] ap161010.html
  [14] https://spaceplace.nasa.gov/hurricanes/en/
  [15] https://www.youtube.com/watch?v=sPW7uzGbFZ4
  [16] ap040406.html
  [17] https://eo.ucar.edu/kids/dangerwx/hurricane3.htm
  [18] https://www.nasa.gov/feature/goddard/2017/harvey-atlantic-ocean
  [19] https://en.wikipedia.org/wiki/Storm_surge
  [20] https://en.wikipedia.org/wiki/Texas
  [21] ap170827.html
  [22] ap170825.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=170826
  [32] ap170827.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/
