Sometimes the incongruity between the good science of this show's concepts and the bad science of their execution really gets on my nerves. Good: Alex using a convoluted gravity-assist maneuver around Jupiter's moons to get to Ganymede without using engines. Bad: portraying it as a roller-coaster ride taking only seconds to swoop between moons that are almost right next to each other. The bodies in question are hundreds of thousands of kilometers apart, so that trajectory would be a few million km long and would probably take a week or more to complete.
Also, that shot of the Rocinante ducking behind that one moon to avoid the Martian cruiser had a huge problem of scale. The moon looked no bigger relative to the Roci than Tycho Station did in earlier episodes. But it was spherical and icy white, so it pretty much had to be Europa, which is over 3000 kilometers across, nearly as big as Earth's Moon.
I'm also not crazy about the trend this show is taking toward torture porn. I hated the bit where Holden said that he was fine with bashing skulls in if it stopped the protomolecule and saved more lives. That's based on the dangerous and evil lie that torture actually works in the first place, that it actually would save lives and can therefore be justified in extreme cases -- which is really not the case, as most interrogation experts agree that torture actually makes it harder to get reliable intelligence from people. Okay, granted, they seem to be showing that Holden is losing his way and going to a dark place, so maybe that's the intent. But we saw the same implied attitude toward torture again when Bobbi beat her superior into a confession and it actually worked. I was refreshed some weeks back when they got intelligence out of that protomolecule researcher (Cortazar?) by relating to him and giving him an incentive to open up rather than trying to threaten or beat it out of him; that was smart and realistic, as well as ethically preferable. But now they're falling back on the lazy, corrupt cliche that violence works as a means of interrogation.
Then again, what I would've preferred to see was something where Bobbi talked her superior into confessing through the strength of her argument or by engaging with him emotionally enough to induce some sense of guilt or sympathy, or something like that -- but I don't think the actress is strong or charismatic enough to have pulled off a scene like that. Violence is the recourse of the weak and stupid; it takes real strength to change people's minds through conversation alone. I can buy that sort of strength from Shohreh Aghdashloo, but not from Frankie Adams.
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. In this case no marine would have been able to convince their superior officer to release top secret info to their mortal enemy, that relationship just simply doesn't work that way. It frankly would have been less believable had this occurred. 
