>>211737517
>Or using a small jetpack to pull away from Neptune, a fucking gas giant
Yeah, that part was a little confusing. But on rewatch, he used the spinning radar antenna to give him thrust towards his ship, used part of the hull as a shield against microasteroids, then used the jetpack to give a little delta-V to meetup with the ship. So he wasn't really getting away from Neptune with the jetpack, just matching orbits with his ship which could take him back to Earth