Meet the Milky Way's Last Big Meal: The Sausage Galaxy

Our Milky Way Galaxy once dined on the Sausage Galaxy, and Jupiter's auroras seem to be heavily influenced by one of its moons. It's a galaxy-eat-galaxy kind of universe out there!

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Sources:

https://www.eurekalert.org/jrnls/sci/summaries-07-06-18.php#B
http://science.sciencemag.org/content/early/2018/07/03/science.aat1450.full
https://www.space.com/41084-jupiter-moons-intricate-aurora-footprints.html

https://www.eurekalert.org/pub_releases/2018-07/sf-tgs070318.php
https://academic.oup.com/mnras/article-abstract/478/1/611/5032586?redirectedFrom=fulltext
https://arxiv.org/pdf/1805.00453.pdf
https://arxiv.org/pdf/1802.03351.pdf
https://arxiv.org/abs/1804.07050.pdf

Images:

https://eurekalert.org/multimedia/pub/174793.php?from=399049
http://www.eso.org/public/usa/videos/eso1339a/
https://eurekalert.org/multimedia/pub/174794.php?from=399049
https://commons.wikimedia.org/wiki/File:Interacting_Galaxies_Hubble.jpg
https://www.jpl.nasa.gov/spaceimages/details.php?id=PIA21033
https://www.nasa.gov/feature/goddard/2016/hubble-captures-vivid-auroras-in-jupiter-s-atmosphere
https://en.wikipedia.org/wiki/File:Jupiter_and_the_Galilean_Satellites.jpg
https://www.nasa.gov/mission_pages/juno/multimedia/pia03155.html
https://www.jpl.nasa.gov/news/news.php?feature=7075
https://commons.wikimedia.org/wiki/File:PIA19822-MagneticBlackHoleWaves-AlfvenS-waves-20150709.jpg
https://science.nasa.gov/science-news/science-at-nasa/2007/29mar_bigauroras
https://commons.wikimedia.org/wiki/File:Juno_Aces_Eighth_Science_Pass_Of_Jupiter.jpg
https://www.nasa.gov/mission_pages/cassini/multimedia/pia13763.html
https://m.esa.int/spaceinimages/Images/2016/09/Anatomy_of_the_Milky_Way
https://commons.wikimedia.org/wiki/File:Vortex-street-animation.gif