I've been having an ongoing debate with a friend about the scene where Kai jumps from The LEXX to planet water in S3 E1. I am aware of the suspend disbelief, and I do agree, picking things apart isn't always a good thing, however, I often try to justify a scene like this with science or other explanation, so here goes...
While the location of The LEXX and how close it was to the planet isn't really constant, as it could be portrayed far away, but the writers intended for The LEXX to be into closer orbit, it seems to me that Kai would not have fallen like he did if he were to jump off of The LEXX. But it could be said that because of the situation with the two planets being so close together, it causes a unique gravity situation of some sort, where gravity stretches further out than it normally would.
- Or -
It's possible that because he is dead, the laws of gravity do not apply?
Anyone else have any ideas? Aside from it was just a Hollywood way to get Kai to the surface?
The two planets shared a conjoined atmosphere which means there is no problem with reentry when they are at their closest point. We see the occupants of Fire travel to water on hot air balloons.
Kai is also decarbonized and is practically indestructible, we see this demonstrated several times. But he can be damaged, the initial impact on the balcony is what knocks his systems out of alignment in the first place.