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Go to http://curiositystream.com/space to start streaming "Space Probes." Use the promo code "space" during the sign-up process to get your first 31 days free.

The ESA Hipparcos team worked for 20 years on the project, then had to watch as the mission ALMOST failed! But somehow, they turned it around, and today, this little-known mission has totally transformed what we know about space.

Hosted by: Reid Rimers

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Sources:
https://sci.esa.int/web/hipparcos/-/47357-fact-sheet
https://sci.esa.int/web/hipparcos/-/31905-about-the-mission
https://www.cosmos.esa.int/web/hipparcos/scientific-goals
http://www.astronomy.com/news/2005/01/hipparchuss-sky-catalog-found
https://www.cosmos.esa.int/documents/532822/546213/vol2_all.pdf/39073ea4-8e7a-4b07-8094-6ce046f0e4db
https://wwwhip.obspm.fr/heritage/hipparcos/SandT/hip-SandT.html
https://www.spenvis.oma.be/help/background/soldam/soldam.html
http://adsabs.harvard.edu/abs/1997A&A...323L..49P
https://doi.org/10.1051/0004-6361:20078357
http://adsabs.harvard.edu/abs/1997A&A...323L..57H
http://adsabs.harvard.edu/abs/2000A&A...355L..27H
https://arxiv.org/pdf/astro-ph/9707107.pdf
https://iopscience.iop.org/article/10.1086/305201
https://www.cosmos.esa.int/documents/532822/553347/feast_ceph.pdf/9cf31b5f-dc80-454c-b547-338dc973fc59
Planck: https://arxiv.org/abs/1807.06209
SL9: https://www.cambridge.org/core/services/aop-cambridge-core/content/view/7C7A50945B166FCC28D197F3A53EB2D5/S025292110011543Xa.pdf/orbital_motion_and_impact_circumstances_of_comet_shoemakerlevy_9.pdf
https://nssdc.gsfc.nasa.gov/planetary/impact.html
Other discoveries: https://iopscience.iop.org/article/10.1086/300364
https://www.cosmos.esa.int/web/hipparcos/poster
https://arxiv.org/abs/astro-ph/9707253
https://www.cosmos.esa.int/documents/532822/553347/aa_letter.pdf/93714a5a-c3d2-4a1f-8a9d-53ecbb909f52

Image Sources:
https://commons.wikimedia.org/wiki/File:Hipparcos-testing-estec.jpg
https://commons.wikimedia.org/wiki/File:The_Blue_Marble_4463x4163.jpg
https://commons.wikimedia.org/wiki/File:Observatory_in_Alexandria_at_the_Time_of_Hipparchus.jpg
https://svs.gsfc.nasa.gov/3951
https://en.wikipedia.org/wiki/File:The_globular_cluster_NGC_6388,_observed_by_Hubble.jpg
https://apod.nasa.gov/apod/ap130909.html
https://svs.gsfc.nasa.gov/12900
https://www.istockphoto.com/photo/cloud-typologies-night-sky-milky-way-gm879837540-245198742
https://www.flickr.com/photos/gsfc/8517114274
https://www.videoblocks.com/video/fly-through-outer-space-nebula-and-stars-animated-background-b5c6fktyeizjo797m
https://solarsystem.nasa.gov/resources/2471/comet-shoemaker-levy-9-jupiter-impact-visualization/
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