this post was submitted on 21 Mar 2025
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Bullseye (lemmy.world)
submitted 2 weeks ago* (last edited 2 weeks ago) by lawrence@lemmy.world to c/comicstrips@lemmy.world
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[–] Semi_Hemi_Demigod@lemmy.world 68 points 2 weeks ago (17 children)

Fun fact: The sun is the hardest place to get to in the solar system. It’s less dV to leave entirely than to get to Mercury

[–] Owlboi@lemm.ee 12 points 2 weeks ago (15 children)

can you explain why? cuz that doesnt make sense to me

[–] MyatZezou@piefed.social 14 points 2 weeks ago

https://xkcd.com/681_large/

The sun creates a big gravity well. The earth happens to be quite close to the top of this well (because of the inverse square low). It takes about the same energy to go down and up the gravitational well.

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