Is Lagrange L2 Point Getting Crowded?

A Lagrange point is a point in space where the gravitational forces of two large bodies, such as the Earth and the sun or the Earth and the moon, equal the centrifugal force experienced by a considerably smaller third body.

You are welcome to support us so we can create more quality content:

Join this channel to get access to perks:

----

Produced & Edited by:
Ardit Bicaj

Written by:
Nicole Amondi

Narrated by:
Russell Archey

Graphics:
NASA/Goddard Space Flight Center
Scientific Visualization Studio
ESO/L. Calçada
Phoenix7777 (CC BY-SA 4.0)
NASA, SkyWorks Digital
Northrop Grumman, STScI

Music:
ES_Terra Firma - Dream Cave

Licenses Used:

A big thank you to our lovely members:
Joseph Pacchetti
-
Cosmoknowledge brings news from space.
We love you, explorers!

[SML]

This is the beginning of a new Era in Space Exploration. Exciting times.

[josephpacchetti]

Thanks Russell, That was a great explanation of a Lagrange point, I don't like to admit it, but up until the launch of the JWST I did not know what a Lagrange point was, Thanks everyone for this excellent video, and I'll see you soon, keep looking up! 🇺🇸

[jake_]

Currently, only Gaia, Spektr-RG and JWST are at L2. Plato is scheduled for 2026. WMAP, Planck and Herschel Space Observatory were moved from L2 at the end of their mission.

[lymancopps]

L2 will never become crowded. The orbit circumference is comparable to earth geostationary orbit, and its unstable requiring craft to have adequate station keeping fuel to stay in L2. As the fuel of these craft deplete, they will exit L2 and become heliocentric. So L2 will never become crowded.

[HotelPapa]

"1:59" Would plummet irreversibly towards sun or earth"
This conjures up images of objects crashing into the sun or earth (may not have been meant that way, but it does). This is not what is happening. Lets say an object in L2 were not well controlled and lost its balance. It would slip out of the point either towards earth, or away from it. Once it has moved away from earth to be out of its closer gravitational influence, it finds itself on a trajectory parallel to earth's, slightly outside, and slightly too fast. Which means it enters a slightly elliptic orbit around the sun just outside of earth's. Similarly a straggler from L1, or L3 would enter an elliptic orbit inside of earth's.

[JohnSmith-eosp]

0:36 The trailing point behind the primary is also known as a TROJAN POINT.
2:11 That spacecraft looks right out of that TV show Space:1999

[tridibroyarjo]

You are such a great explainer, A Cosmoknowledge a day keeps the fear away

[matthewhyungjunahn]

I assume it also allows for very long image exposures because it won’t get occluded by the earth

[subhasisbhowmik]

Mathematician extraordinare. In fact most of the mathematicians of yesteryears were great scholars.
Amaze to see a concept proposed 250 years ago is finding application now.
Hats off 🙏🙏

[kylebecker]

Only had to wait four and a half minutes through a five minute video to get the answer to the question in the title.

[gmeast]

Joseph-Louis Lagrange ... amazing to have realized this without first having been in space.

[sbove]

Best explanation of the Lagrange points and why/how L2 is used by WMAP, Webb etc. Beautiful graphics!! Thanks a millionx!

[ivanscissorhands]

Great video, thank you!
I'm so excited to see what Webb will show us!!
💯👏🏽

[MusicEchos]

Thank you for telling us about it. The "live" sites show tiny tiny tiny pictures and titles. If I move them around and enlarge them I accidentally drag the video position gets picked up and loose my place on the video. Then a commercial comes on.

[bestsources]

great illustration of L2 point. cool video. good work

[luudest]

4:07 What is the radius JWST and the other spacecrafts orbit around L2?

[gregmonaghan]

0:33 "Liberation points" - LOL

[dranuradhagupta]

Ur work is really great, i must suggest everyone to get knowledge about the truth of solar system and universe 😊. Its fascinating. Good work. 👍

[Delta-X-Ray]

A good question would be. What is the distance of the ORBITAL Radius in L2?. And which point does 5 probes are orbiting right now.

[tinkmarshino]

L-3 is great.. I keep my expressive beer and comic book collection there.. Best hiding place ever.. my brother still hasn't found it yet!.. Dang I am just getting over a real nasty flu.. congestion like to make me cough my head off.. But I took precautions I taped my head down to my shoulders just in case.. I don't look so bad with a shaved head now... as long as no one see's me that is.. hope your year is off to a bang brother! Carry on!