Uploaded June 2021 | Updated September 2026, 2 weeks ago
The effects of dark matter on galaxies is a mystifying and difficult thing to study, but the Milky Way's galactic bar might present an exciting way to quantify how much of it exists!
Hosted by: Reid Reimers
SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at scishowtangents.org
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Support SciShow Space by becoming a patron on Patreon: patreon.com/SciShowSpace
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Sources:
academic.oup.com/mnras/article/505/2/2412/6237521
eurekalert.org/pub_releases/2021-06/ucl-dmi061421.php
https://chandra.cfa.harvard.edu/photo/2012/halo/
https://ned.ipac.caltech.edu/level5/ESSAYS/Cudworth/cudworth.html
hindawi.com/journals/aa/2011/604898
cambridge.org/highereducation/books/an-introduction-to-modern-astrophysics/140DDF8A480C3841DCCD76D66984D858#overview
http://hyperphysics.phy-astr.gsu.edu/hbase/amom.html
https://www.lpl.arizona.edu/~renu/malhotra_preprints/rio97.pdf
https://ned.ipac.caltech.edu/level5/March11/Sellwood/Sellwood2.html
https://www.ifa.hawaii.edu/users/barnes/ast626_95/tss.html
https://www.vanderbilt.edu/AnS/physics/astrocourses/ast201/angular_momentum.html
Images:
esahubble.org/images/potw2108a
esahubble.org/images/potw2051a
eurekalert.org/multimedia/pub/267827.php
nasa.gov/image-feature/goddard/2021/hubble-snaps-stunning-barred-spiral-galaxy
commons.wikimedia.org/wiki/File:Angular_momentum_conservation.gif
en.wikipedia.org/wiki/File:Hubble2005-01-barred-spiral-galaxy-NGC1300.jpg
nasa.gov/image-feature/bright-blue-stars
commons.wikimedia.org/wiki/File:NGC_6384_HST.jpg
commons.wikimedia.org/wiki/File:Bars_and_Baby_Stars_-_potw2004a.jpg
nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1966-045A
The effects of dark matter on galaxies is a mystifying and difficult thing to study, but the Milky Way's galactic bar might present an exciting way to quantify how much of it exists!
Hosted by: Reid Reimers
SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at scishowtangents.org
----------
Support SciShow Space by becoming a patron on Patreon: 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: dftba.com/scishow
----------
Looking for SciShow elsewhere on the internet?
Facebook: facebook.com/scishow
Twitter: twitter.com/scishow
Tumblr: scishow.tumblr.com
Instagram: instagram.com/thescishow
----------
Sources:
academic.oup.com/mnras/article/505/2/2412/6237521
eurekalert.org/pub_releases/2021-06/ucl-dmi061421.php
https://chandra.cfa.harvard.edu/photo/2012/halo/
https://ned.ipac.caltech.edu/level5/ESSAYS/Cudworth/cudworth.html
hindawi.com/journals/aa/2011/604898
cambridge.org/highereducation/books/an-introduction-to-modern-astrophysics/140DDF8A480C3841DCCD76D66984D858#overview
http://hyperphysics.phy-astr.gsu.edu/hbase/amom.html
https://www.lpl.arizona.edu/~renu/malhotra_preprints/rio97.pdf
https://ned.ipac.caltech.edu/level5/March11/Sellwood/Sellwood2.html
https://www.ifa.hawaii.edu/users/barnes/ast626_95/tss.html
https://www.vanderbilt.edu/AnS/physics/astrocourses/ast201/angular_momentum.html
Images:
esahubble.org/images/potw2108a
esahubble.org/images/potw2051a
eurekalert.org/multimedia/pub/267827.php
nasa.gov/image-feature/goddard/2021/hubble-snaps-stunning-barred-spiral-galaxy
commons.wikimedia.org/wiki/File:Angular_momentum_conservation.gif
en.wikipedia.org/wiki/File:Hubble2005-01-barred-spiral-galaxy-NGC1300.jpg
nasa.gov/image-feature/bright-blue-stars
commons.wikimedia.org/wiki/File:NGC_6384_HST.jpg
commons.wikimedia.org/wiki/File:Bars_and_Baby_Stars_-_potw2004a.jpg
nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1966-045A








![Where Did Mercury’s Spots Come From?
Pre-order your MESSENGER pin all this month here: https://dftba.com/scishow
The Sun isn’t the only celestial body in the solar system to boast spots of its own. Mercury, too, has its fair share, and they’re worth wondering about.
Hosted by: Hank Green (he/him)
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: https://www.patreon.com/SciShowSpace
Or by checking out our awesome space pins and other products over at DFTBA Records: http://dftba.com/scishow
Looking for SciShow elsewhere on the internet?
SciShow on TikTok: https://www.tiktok.com/@scishow
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Facebook: http://www.facebook.com/scishow
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Instagram: http://instagram.com/thescishow
Sources:
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2006JE002713
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2012JE004174
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018JE005722
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/jgre.20115
https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/GL004i010p00383
https://hal.sorbonne-universite.fr/hal-03181555/document
https://www.sciencedirect.com/science/article/pii/S0019103513004909
https://www.sciencedirect.com/science/article/abs/pii/S0019103521000051
https://www.sciencedirect.com/science/article/abs/pii/0019103587900376
https://www.sciencedirect.com/science/article/pii/S0032063320303494
https://www.sciencedirect.com/science/article/abs/pii/S0012821X22002837
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2016GL068325
https://www.lpi.usra.edu/meetings/lpsc2012/pdf/1329.pdf [PDF]
https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.656.6420&rep=rep1&type=pdf [PDF]
https://link.springer.com/article/10.1007/s11214-020-00694-7
https://arxiv.org/pdf/2101.10886.pdf
Image Sources:
https://www.youtube.com/watch?v=zsJpUCWfyPE
https://messenger.jhuapl.edu/Explore/Science-Images-Database/gallery-image-911.html
https://messenger.jhuapl.edu/Explore/Science-Images-Database/gallery-image-1568.html
https://solarsystem.nasa.gov/missions/mariner-10/in-depth/
https://photojournal.jpl.nasa.gov/catalog/PIA02446
https://www.nasa.gov/image-feature/mariner-10-image-of-mercury
https://photojournal.jpl.nasa.gov/catalog/PIA02962
https://solarsystem.nasa.gov/missions/messenger/in-depth/
https://photojournal.jpl.nasa.gov/catalog/PIA19267
https://photojournal.jpl.nasa.gov/catalog/PIA19425
https://photojournal.jpl.nasa.gov/catalog/PIA19216
https://photojournal.jpl.nasa.gov/catalog/PIA19212
https://commons.wikimedia.org/wiki/File:MESSENGER CN0162744010M_RA_3_web.png
https://commons.wikimedia.org/wiki/File:Balzac_crater_MESSENGER_WAC_IGF_to_RGB.jpg Where Did Mercury’s Spots Come From?](https://i.ytimg.com/vi/_7k_Wdz3_zg/mqdefault.jpg)

