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M.-L. Aru

@MLA_astro

Dec 27, 2021 • 7 tweets • 2 min read • Read on X

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What are the Lagrange points and why is JWST going there?

I made this digestible breakdown: hope it's useful for someone out here on Twitter! 1/6

#Physics #SpaceExploration

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Important detail: Spacecraft are not placed at the Lagrange points themselves, but they are in orbits associated with the Lagrange points.

(Lissajous or Halo orbits to be exact)

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More from @MLA_astro

M.-L. Aru

@MLA_astro

Jul 15, 2022

1/ A digestible thread on gravitational lensing, the phenomenon which allowed us to see these funky, most distant galaxies yet in the JWST deep field image.

2/ Rays of light from a distant star or a galaxy can be bent by the gravity of a massive object, such as another galaxy or a galaxy cluster, as the latter warps the fabric of space.

🖼️#NASA/#ESA

@NSF

3/ From our vantage point, the galaxy or galaxy cluster acts as a powerful magnifying glass that distorts and amplifies the light from distant objects behind it.

Pretty amazing, right?
🖼️@NSF

Read 9 tweets

M.-L. Aru

@MLA_astro

Jul 13, 2022

@esa

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