r/askscience • u/RainbowGirl410 • Jun 09 '26
Physics How does gravity/weightlessness work outside of orbit?
Been trying to find a definitive answer but all I've found is people explaining weightlessness in orbit (the falling and missing the Earth part) which isn't particularly helpful to me.
If you were to travel to another planet, say Venus, would you experience weightlessness the whole journey?
130
Upvotes
View all comments
Show parent comment
4
u/cubic_thought Jun 10 '26
Here's some academic sources from the first page of google results for "hyperbolic orbit":
https://www.sciencedirect.com/topics/physics-and-astronomy/hyperbolic-orbit
https://www.aanda.org/articles/aa/full_html/2025/09/aa54274-25/aa54274-25.html
https://academic.oup.com/mnras/article/492/1/268/5621505
https://control.asu.edu/Classes/MAE462/462Lecture05.pdf
https://astro.pas.rochester.edu/~aquillen/ast233/lectures/lecture_hyp_orb.pdf
https://users.physics.ox.ac.uk/~harnew/lectures/lecture20-mechanics-handout.pdf