Uploaded October 2022 | Updated September 2026, 2 weeks ago
Telescopes can get pretty big, incredibly big actually. Unbelievably big. So here's a compilation about how we managed to get them that size and how that size helps us to see.
Hosted by: Savannah Geary (they/them)
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Huge thanks go to the following Patreon supporter for helping us keep SciShow Space free for everyone forever: Jason A Saslow, David Brooks, and AndyGneiss!
Support SciShow Space by becoming a patron on Patreon: patreon.com/SciShowSpace
Or by checking out our awesome space pins and other products over at DFTBA Records: dftba.com/scishow
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Sources:
The Leviathan of Parsonstown
youtube.com/watch?v=GuErXHIPS7A
ALMA: What We’ve Learned From One of the Best Telescopes On Earth
youtube.com/watch?v=Yg_Fis7uG1k
A Telescope Bigger Than The Solar System
youtube.com/watch?v=oyrVXaP65UY
Telescopes can get pretty big, incredibly big actually. Unbelievably big. So here's a compilation about how we managed to get them that size and how that size helps us to see.
Hosted by: Savannah Geary (they/them)
----------
Huge thanks go to the following Patreon supporter for helping us keep SciShow Space free for everyone forever: Jason A Saslow, David Brooks, and AndyGneiss!
Support SciShow Space by becoming a patron on Patreon: patreon.com/SciShowSpace
Or by checking out our awesome space pins and other products over at DFTBA Records: dftba.com/scishow
----------
Looking for SciShow elsewhere on the internet?
SciShow on TikTok: tiktok.com/@scishow
SciShow Tangents Podcast: scishowtangents.org
Facebook: facebook.com/scishow
Twitter: twitter.com/scishow
Instagram: instagram.com/thescishow
----------
Sources:
The Leviathan of Parsonstown
youtube.com/watch?v=GuErXHIPS7A
ALMA: What We’ve Learned From One of the Best Telescopes On Earth
youtube.com/watch?v=Yg_Fis7uG1k
A Telescope Bigger Than The Solar System
youtube.com/watch?v=oyrVXaP65UY


![What Saturn’s Rings Tell Us About Its Soupy Core
This episode is sponsored by Endel, an app that creates personalized soundscapes to help you focus, relax and sleep.The first 100 people to sign up here get a one week free trial: https://app.adjust.com/b8wxub6?campaign=scishowspace_august&adgroup=youtube
The insides of the our gas giant friend, Saturn, might be less of a mystery now that we’ve figured out how to use its rings to indicate its internal makeup. And the light emitted from some very old, very hungry black holes could be giving us a new way to measure some of the heaviest objects in space.
Hosted By: Hank Green
SciShow has a spinoff podcast! Its called SciShow Tangents. Check it out at http://www.scishowtangents.org
Support SciShow Space by becoming a patron on Patreon: https://www.patreon.com/SciShowSpace
Huge thanks go to the following Patreon supporter for helping us keep SciShow Space free for everyone forever: GrowingViolet & Jason A Saslow!
Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow
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Sources:
https://doi.org/10.1038/s41550-021-01448-3 https://authors.library.caltech.edu/109256/3/2104.13385.pdf]
https://www.caltech.edu/about/news/saturn-makes-waves-in-its-own-rings
https://www.technologyreview.com/2021/08/16/1031996/saturn-core-insides-sloshing-rings-cassini/
https://baas.aas.org/pub/2020n6i513p06/release/1
https://arxiv.org/abs/1407.6702?context=astro-ph
https://science.sciencemag.org/content/373/6556/789
https://www.eurekalert.org/news-releases/924988
https://www.eurekalert.org/news-releases/924845
Image Sources:
https://en.wikipedia.org/wiki/File:Saturn_during_Equinox.jpg
https://www.istockphoto.com/photo/structure-core-earth-structure-layers-of-the-earth-the-structure-of-the-earths-crust-gm962321406-262821721
https://mars.nasa.gov/resources/22118/insight-on-mars/
https://www.jpl.nasa.gov/images/gas-giants-form-quickly-artist-concept
https://www.nasa.gov/feature/jpl/nasa-juno-mission-prepares-for-december-11-jupiter-flyby
https://www.nasa.gov/mission_pages/cassini/multimedia/pia14944.html
https://solarsystem.nasa.gov/resources/17849/translucent-arcs/?category=planets_saturn
https://solarsystem.nasa.gov/resources/13904/saturns-outer-c-ring/
https://solarsystem.nasa.gov/resources/17631/saturn-interior-cutaway-illustration/
https://www.caltech.edu/about/news/saturn-makes-waves-in-its-own-rings
https://www.nasa.gov/feature/jpl/found-most-distant-black-hole
https://www.nasa.gov/image-feature/jpl/pia21086/galaxy-ngc-1448-with-active-galactic-nucleus
https://svs.gsfc.nasa.gov/13326
https://www.nasa.gov/feature/goddard/2021/new-nasa-visualization-probes-the-light-bending-dance-of-binary-black-holes
https://www.nasa.gov/multimedia/imagegallery/image_feature_468.html
https://www.nasa.gov/vision/universe/starsgalaxies/black_hole_description.html What Saturn’s Rings Tell Us About Its Soupy Core](https://i.ytimg.com/vi/wJ-nkYNhR8k/mqdefault.jpg)


![Why Did We Keep Sealed Moon Samples?
Our friends at MinuteEarth just released a new book! To check out “How Did Whales Get So Big?” head to: https://www.minuteearth.com/books/
We’ve been sitting on samples of the lunar surface for decades and, with better technology than when they were taken, we are opening them back up to take another look!
Hosted By: Hank Green
SciShow is on TikTok! Check us out at https://www.tiktok.com/@scishow
Support SciShow Space by becoming a patron on Patreon: https://www.patreon.com/SciShowSpace
Huge thanks go to the following Patreon supporter for helping us keep SciShow Space free for everyone forever: GrowingViolet, Jason A Saslow, Heriberto Bustos, and David Brooks!
Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow
Looking for SciShow elsewhere on the internet?
SciShow Tangents Podcast: http://www.scishowtangents.org
Facebook: http://www.facebook.com/scishow
Twitter: http://www.twitter.com/scishow
Instagram: http://instagram.com/thescishow
Sources:
https://curator.jsc.nasa.gov/education/_documents/what%20we%27ve%20learned%20about%20the%20moon.pdf [PDF]
https://www.lpi.usra.edu/ANGSA/news/ANGSA-Lessons-Learned-Final-September_1_2021.pdf [PDF]
https://www.hou.usra.edu/meetings/lpsc2021/pdf/lpsc2021_program.htm
https://www.jstor.org/stable/30059009
https://pubs.geoscienceworld.org/gsa/gsabulletin/article/72/10/1493/5246/devitrification-of-natural-glass
https://pubs.er.usgs.gov/publication/70013895
https://arxiv.org/abs/1205.5597
http://articles.adsabs.harvard.edu//full/1971LPSC....2..645C/0000645.000.html
https://astronomy.com/news/2019/05/giant-impact-hypothesis-an-evolving-legacy-of-apollo
https://www.theatlantic.com/science/archive/2019/02/moon-rock-thief-thad-roberts/582757/
https://www.space.com/13878-nasa-apollo-moon-rocks-misplaced-lost-report.html
https://www.orlandosentinel.com/space/apollo-11-anniversary/os-ne-apollo-11-what-happened-to-moon-rocks-20190625-nw443tpnsva4zco2x75fzxoftu-story.html
https://www.lpi.usra.edu/lunar/strategies/KleinhenzEtAl_NASA-TM-20205008626_ISRU%20MeasurementStudy.pdf [PDF]
https://www.nasa.gov/press-release/nasa-s-sofia-discovers-water-on-sunlit-surface-of-moon
Image Sources:
https://commons.wikimedia.org/wiki/File:Apollo_15_flag,_rover,_LM,_Irwin.jpg
https://commons.wikimedia.org/wiki/File:Lunar_Regolith_70050_from_Apollo_17_in_National_Museum_of_Natural_History.jpg
https://www.nasa.gov/feature/nasas-exploration-plans-include-living-off-the-land
https://commons.wikimedia.org/wiki/File:Apollo_11_Lunar_Core_Sample_10005.jpg
https://commons.wikimedia.org/wiki/File:Lunar_sample_70017_photo_S73-15720.jpg
https://commons.wikimedia.org/wiki/File:Artist%27s_concept_of_collision_at_HD_172555.jpg
https://commons.wikimedia.org/wiki/File:Moon Giant_Impact_Hypothesis Simple_model.png
https://commons.wikimedia.org/wiki/File:Lunar_Olivine_Basalt_15555_from_Apollo_15_in_National_Museum_of_Natural_History.jpg
https://commons.wikimedia.org/wiki/File:The_Moon_Luc_Viatour.jpg
https://commons.wikimedia.org/wiki/File:LPnosunm.jpeg
https://commons.wikimedia.org/wiki/File:Clementine_Deployed.png
https://www.istockphoto.com/photo/deep-space-background-gm178149253-24976202
https://www.youtube.com/watch?v=l2CfQV0UCAk
https://commons.wikimedia.org/wiki/File:Apollo_11_Moon_rocks_1.jpg
https://www.nasa.gov/feature/nasa-opens-previously-unopened-apollo-sample-ahead-of-artemis-missions
https://www.youtube.com/watch?v=7AFMj66tNfw&t=26s
https://www.nasa.gov/feature/nasa-selects-teams-to-study-untouched-moon-samples
https://www.istockphoto.com/photo/chain-of-amino-acid-or-bio-molecules-called-protein-3d-illustration-gm1225652892-360843001
https://science.nasa.gov/science-news/science-at-nasa/2008/10apr_moondustinthewind
https://commons.wikimedia.org/wiki/File:Mooncolony.jpg Why Did We Keep Sealed Moon Samples?](https://i.ytimg.com/vi/won5F5ZfIuU/mqdefault.jpg)




