This year, scientists have had a chance to study something pretty mind-boggling: a comet that came from outside of our solar system.
Host: Hank Green
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Sources:
https://www.eurekalert.org/pub_releases/2019-12/uoc–nni121219.php
http://www2.ess.ucla.edu/~jewitt/papers/2019/JHK19.pdf
http://www2.ess.ucla.edu/~jewitt/papers/2019/JL19b.pdf
http://www2.ess.ucla.edu/~jewitt/2019Q4.html
https://www.spacetelescope.org/news/heic1918/
https://www.skyandtelescope.com/astronomy-news/possible-interstellar-comet-headed-our-way/
https://minorplanetcenter.net/mpec/K19/K19RA6.html
https://hubblesite.org/contents/news-releases/2019/news-2019-61
https://www.sciencemag.org/news/2019/10/alien-comets-may-be-common-object-beyond-solar-system-suggests
https://projectpluto.com/temp/2017u1.htm
https://projectpluto.com/temp/2i.htm
https://arxiv.org/pdf/1909.05851.pdf
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Images:
https://svs.gsfc.nasa.gov/4758
https://hubblesite.org/contents/media/images/2019/61/4589-Image?news=true
https://www.spacetelescope.org/videos/heic1918a/
https://svs.gsfc.nasa.gov/4758
https://www.spacetelescope.org/images/heic1918b/
https://svs.gsfc.nasa.gov/4758
https://www.spacetelescope.org/news/heic1918/
https://www.eso.org/public/videos/eso1820c/
https://en.wikipedia.org/wiki/File:Milkyway_Swan_Panorama.jpg
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