Uploaded March 2019 | Updated September 2026, 3 weeks ago

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If we want a space probe to be stationary relative to the Earth, then we need a Lagrange point! They’re five points of gravitational stability, but how do we know they’re there?
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VIDEO ANNOTATIONS/CARDS

Black Hole Playlist:
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Solar System To-Scale:
youtu.be/iGV4y2W2SOE

Merry-Go-Round Physics:
youtu.be/EwX4iaPBEes

What is Energy?
youtu.be/snj1wBtn6I8
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RELATED YOUTUBE VIDEOS

Sixty Symbols on Lagrange Points:
youtu.be/mxpVbU5FH0s

Fraser Cain on Lagrange Points:
youtu.be/foyJzvpeaBE
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OTHER SOURCES

http://hyperphysics.phy-astr.gsu.edu/hbase/Mechanics/lagpt.html
wmap.gsfc.nasa.gov/mission/observatory_l2.html
https://www.math.arizona.edu/~gabitov/teaching/141/math_485/Final_Report/Lagrange_Final_Report.pdf
demonstrations.wolfram.com/LagrangePoints
demonstrations.wolfram.com/OrbitsAroundTheLagrangePointL4
https://ocw.mit.edu/courses/aeronautics-and-astronautics/16-07-dynamics-fall-2009/lecture-notes/MIT16_07F09_Lec18.pdf
exploremars.org/trojan-asteroids-around-jupiter-explained

en.wikipedia.org/wiki/List_of_lists_of_lists
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LINKS TO COMMENTS

Lagrange Points:
youtube.com/watch?v=fU0RN_dC2PY&lc=UgzSqzWNh3bxVHrkZ1N4AaABAg
youtube.com/watch?v=fU0RN_dC2PY&lc=Ugxhm-OiGVyq8xq7sdR4AaABAg
youtube.com/watch?v=fU0RN_dC2PY&lc=UgxQQDCdcoKjrt3MPaN4AaABAg

Featured Comment:
youtube.com/watch?v=1gf4yejFNe4&lc=UgziEebUqfYNpKoFt_14AaABAg