“Cahan shouted as the two were” … using “as” here to connect an action with setting the scene feels odd to me. Normally you would connect an action with an action, “Cahan shouted as the two walked down an alley” or else the second part would explain why the first happened, “Cahan whispered as the two were inside a library.” Personally I would disconnect them, “Cahan shouted. The two were”

“Cahan left and Fabocusa returned” … that felt short to me, or perhaps anticlimactic. Cahan just walks away? It's like the scene needs an explosion to end on, not a literal one but something big and final all the same. And then we move on to the next scene with no time for a tone shift, which is kind of needed because we're going straight from two friends yelling at each other to Fabo's happy family life.

“She crept up revealing her big belly” … not sure what just happened there. Did you mean that Fabo crept up? Or Helen's gown was creeping up? Or Helen crept up on Fabo?

“Alpha implied” … to imply is when you say something without actually saying it, but as far as I can see Alpha just said what he wanted to say.

“Helen woke to find herself in a small dark room” … There we go, now that is an explosion

“she curled up to keep herself warm … she tried to find a light switch” … in one line she is curling up and in the next she is feeling around. Is she feeling around from wherever she curled up? Did she uncurl and stand up to go searching? I can't quite see what is happening.

“found she was no longer pregnant” … ah, so this isn't real. This is a dream? This is Helen seeing the future like that one Councilor did? Reading a bit farther, it seems so.

“ran passed her” … past

“She tried to get their attention by waving and blocking their path, but they didn't notice” … this is the point that Helen should realize what is going on, right? Either they went through her or around her but she should be able to tell that she isn't physically here. And it would help if you described one of those happening, because something needs to happen after she blocks their path.

“It was filled with various beings from across the galaxy. Few were” … and then you list a bunch of one-word descriptions of everyone in the room. The “few” is confusing me, that word would normally imply that the following words were describing minority segments of the group but there's no majority segment to compare that with. I think you just want, “It was filled with various beings from across the galaxy: mechanical, aquatic, reptilian, feline, feathered, and even human.”

“She fell to her knees watched her grown son being cremated” … I was fine when I thought she was sad because these people lost their leader, but now she can tell that Alex is her son? How? Mother's intuition?

“Helen crawled out of the rubble” … she's physical?

“The communication systems are offline” … hmm, I wonder. The first sign of Seiton's return? He was going to use their technology against them after all. I still can't believe they didn't do anything about that after the Councilor went and warned them.

“Fabocusa held Helen so she doesn't fall off the table” … “held” is past tense but “doesn't” is present or future tense. So you want, “Fabocusa held Helen so she didn't/wouldn't fall off the table.”

“Can you fight this?” … Spacer idiom?

“This was very strange for this to be happening” … unnecessary to say at this point

“Did't you have” … didn't

“a sliver dome structure” … silver?

“Lights representing cables scattered over the walls” … I can't see this. Are they physical cables that are lit up? Or hologram cables made of light? Lights that look like cables? Are these data-carrying cables with a purpose, or just decoration?

“wore long purple pointy hats” … so wizard

“all of our computers and gadgets have been failing” … and they waited until now to tell Fabo? He didn't notice that last one himself? Did everything they just said start happening a few minutes ago, or a week ago when the ship crashed?

“You even came in contact with these primitives” … and then he just lists all the alien races. This is kind of an awkward moment. He's got all these names to say and I'm stuck reading them like an announcer reading every name on the sports team's roster.

“How dare you allow yourselves to be worshiped as gods!” … the best thing is, he's got a point here. The Spacers set themselves up as gods and it's been pretty comfy for them, while meanwhile the other races are practicing slavery and all that. But as much of a point as he has … still, I'm a bit confused that Seiton is the one saying it. Isn't this the guy who literally wants to recreate the universe in his own image? The guy who has maybe done way worse stuff? I get that he's mad they did so without him, but he seems less jealous and more indignant.

“ran out of the chamber before filled with toxic gases” … before it filled? If it was me I would go with, “ran outside as the chamber filled with toxic gases behind him.”

“Thinking fast, Fabocusa ripped open a compartment, took out his battle rifle, and shot his way out” … and lest we forget, Fabo is an action hero. It's a cheesy moment but it works, especially finding a battle rifle inside what I thought was his everyday traveling vehicle … actually, wasn't this Cahan's vehicle? Checking … Yeah, Fabo's shuttle is back at the hospital. So Fabo knows where Cahan keeps his battle rifle, or all shuttles have special battle rifle compartments? I thought this was a peaceful planet.

Okay, in summery: you hook me in this chapter with sheer audacity. The happy little scene with Fabo and Helen still feels out of place in this chapter full of friends yelling, prophetic dreams and the end of the world, but from the moment Helen “woke up” I was hooked and I stayed that way until the end. There's a few awkward moments, but those would be easy to fix.

Any questions?