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 April 20
                                      [2]
                        Falcon Heavy Launch Close Up
                           Image Credit: SpaceX [3]

Explanation: Twenty seven Merlin rocket engines are firing in this close-up of
the launch [4]  of a Falcon Heavy rocket. Derived from three Falcon 9 [5]
first stage rockets with nine Merlin rocket engines each, the Falcon Heavy
left NASA's Kennedy Space Center launch pad 39A on April 11. This second
launch of a Falcon Heavy [6]  rocket carried [7]  the Arabsat 6A
communications satellite to space. In February of 2018, the first Falcon Heavy
launch carried Starman and a Tesla Roadster [8] . Designed to be reusable,
both booster stages and the central core returned safely to planet Earth, the
boosters to Cape Canaveral Air Force Station landing zones. The core stage
landed off shore on autonomous spaceport drone ship Of Course I Still Love You
[9] .

                      Tomorrow's picture: spiral aurora

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    Authors & editors: Robert Nemiroff [21] (MTU [22] ) & Jerry Bonnell [23]
                                  (UMCP [24] )
          NASA Official:  Phillip Newman Specific rights apply [25] .
              NASA Web Privacy Policy and Important Notices [26]
              A service of: ASD [27]  at NASA [28]  / GSFC [29]
                           & Michigan Tech. U. [30]
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Site notes:
  [1] archivepix.html
  [2] image/1904/SpaceXFalconHeavy11Apr.jpg
  [3] ://www.spacex.com/
  [4] https://www.flickr.com/photos/spacex/with/406...
  [5] https://blogs.nasa.gov/spacex/2019/04/19/
spacex-crs-17-launch-now-scheduled-for-april-30/
  [6] https://www.spacex.com/falcon-heavy
  [7] https://www.spacex.com/webcast
  [8] ap180210.html
  [9] https://en.wikipedia.org/wiki/
Autonomous_spaceport_drone_ship#Of_Course_I_Still_Love_You
  [10] ap190419.html
  [11] archivepix.html
  [12] lib/apsubmit2015.html
  [13] lib/aptree.html
  [14] https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apo...
  [15] calendar/allyears.html
  [16] /apod.rss
  [17] lib/edlinks.html
  [18] lib/about_apod.html
  [19] http://asterisk.apod.com/discuss_apod.php?dat...
  [20] ap190421.html
  [21] http://www.phy.mtu.edu/faculty/Nemiroff.html
  [22] http://www.phy.mtu.edu/
  [23] https://antwrp.gsfc.nasa.gov/htmltest/jbonnel...
  [24] http://www.astro.umd.edu/
  [25] lib/about_apod.html#srapply
  [26] https://www.nasa.gov/about/highlights/HP_Priv...
  [27] https://astrophysics.gsfc.nasa.gov/
  [28] https://www.nasa.gov/
  [29] https://www.nasa.gov/centers/goddard/
  [30] http://www.mtu.edu/

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