                         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 February 4
                                      [2]
                     Henize 70: A Superbubble in the LMC
                Image Credit & Copyright: Josep M. Drudis [3]

Explanation: Massive stars profoundly affect their galactic environments.
Churning and mixing interstellar clouds of gas and dust, stars -- most notably
those upwards of tens of times the mass of our Sun -- leave their mark on the
compositions [4]  and locations [5]  of future generations of stars [6] .
Dramatic evidence of this is illustrated in our neighboring galaxy, the Large
Magellanic Cloud [7]  (LMC), by the featured nebula, Henize 70 [8]  (also
known as N70 and DEM301). Henize 70 [9]  is actually a luminous superbubble of
interstellar gas about 300 light-years in diameter, blown by winds [10]  from
hot, massive stars and supernova explosions [11] , with its interior filled
with tenuous hot and expanding gas. Because superbubble [12] s can expand
through an entire galaxy, they offer humanity [13] a chance to explore the
connection between the lifecycles of stars and the evolution of galaxies [14]
.

                    Tomorrow's picture: right past Jupiter

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    Authors & editors: Robert Nemiroff [26] (MTU [27] ) & Jerry Bonnell [28]
                                  (UMCP [29] )
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Site notes:
  [1] archivepix.html
  [2] image/1902/N70_Durdis_2000.jpg
  [3] mailto: sidnuntius @at@ gmail .dot. com
  [4] ap171024.html
  [5] ap170417.html
  [6]
https://www.nasa.gov/audience/forstudents/9-12/features/
stellar_evol_feat_912.html
  [7] ap180428.html
  [8] https://astrodrudis.com/n70-henize-70/
  [9] http://adsabs.harvard.edu/abs/2014AJ....148..102R
  [10] ap140701.html
  [11] https://www.youtube.com/watch?v=aysiMbgml5g
  [12] https://en.wikipedia.org/wiki/Superbubble
  [13] ap160815.html
  [14] http://astronomy.swin.edu.au/cosmos/E/evolution+of+galaxies
  [15] ap190203.html
  [16] archivepix.html
  [17] lib/apsubmit2015.html
  [18] lib/aptree.html
  [19] https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  [20] calendar/allyears.html
  [21] /apod.rss
  [22] lib/edlinks.html
  [23] lib/about_apod.html
  [24] http://asterisk.apod.com/discuss_apod.php?date=190204
  [25] ap190205.html
  [26] http://www.phy.mtu.edu/faculty/Nemiroff.html
  [27] http://www.phy.mtu.edu/
  [28] https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  [29] http://www.astro.umd.edu/
  [30] lib/about_apod.html#srapply
  [31] https://www.nasa.gov/about/highlights/HP_Privacy.html
  [32] https://astrophysics.gsfc.nasa.gov/
  [33] https://www.nasa.gov/
  [34] https://www.nasa.gov/centers/goddard/
  [35] http://www.mtu.edu/
