Whoa... lots of aliens! And lots of good ones at that. Nice stuff! Originally I just wanted to say something about Banish, but I got carried away, so here are comments on all of your aliens!
Apotheosis: Very cool!
Banish: It'd be more accurate to say he bans a "digit," not a "number." If number "one" were banned, only the 01 card would be banned; it's the digit that is banned in your example. Also, the wild flare is problematic because it can leave the defense with no playable cards, potentially. I'd reword it to be more like the main power (if your opponent plays a card ending with the digit 0, he loses). Also, what is the timing for the flare? Seems like a fun "after reveal" card, but would that be too powerful? Always hard to say in Cosmic!
Industry: This is essentially Mesmer from the original Eon set, except instead of playing any artifact as any other artifact, you play a Negotiate, which of course makes him stronger. I like it.
Armada: When you say "four player variant" do you mean "four planet variant"? In context, that would seem to make more sense. Also, when you say it is worth 1 for tech purposes, what about compensation, rewards, etc? Is its special value only in play for calculating the encounter total like Macron (well, like old Macron)? Although this is a long shot to ever happen, it's possible that if you play with Void, Armada could lose all his ships and be eliminated from the game, which the Void text clearly indicates FFG is trying to avoid. If you consider this an issue worth addressing for such an unlikely scenario, you could change it so that when a special ship goes to the warp, it becomes a normal ship, though I personally don't see the need for the loss of special ships at all. It seems like a pretty weak power in general unless I'm missing something. If you can only have a max of 8 strong in an encounter, he's no more powerful than Human, except that he can lose his special ships and he doesn't have the zap power, so he's just a weaker version of Human, who is already kind of weak.
Gaia and Bastion: Pretty neat...
Altron: Weaker Miser? Both have two hands, except Altron can only use his in special scenarios and he doesn't have the benefit of the second hand being immune to alien powers (though the offensive hand would obviously be immune to compensation like Miser's hoard).
Magnet: This is an odd one because Magnet is the name of an Eon alien (can force one player to ally with his side or not to ally at all... something like that), and yet the power described is very similar to Worm, another Eon alien, who can redirect attacks when he is main player (offense or defense) after encounter cards are revealed. Being able to do it as a defensive ally makes your guy a bit different and equally viable, though. I like Worm, though I don't think many do, and "Magnet" seems fun as well, though he could use a new name to stand apart from the original Magnet.
Oblivion: Wow, evil! It raises a question I had for The Warp's "Pygmy" alien though: What if your destiny is drawn and the attacking player has no viable attack? Can he redraw destiny, or does he just have to say, "Shucks" and submit himself to a worthless encounter? I'm also not sure why he can't be zapped. I guess it would be particularly more powerful against him than normal aliens, but there are still only so many zaps, and I personally don't like unzapability... but that's just me! Here's a Wild flare suggestion: Choose a planet you have ships on and remove all other ships on the planet to the warp. Afterwards, give this card to Oblivion. If Oblivion is not in the game, discard this card after use.
Terraform: Another cool concept. But why would anyone zap him? It is to his opponents' benefit that Terraform gain planets so they can make viable attacks in his system. I would think a Zap should have the opposite effect, causing all his planets to be attackable for one encounter, with a Resolution timing phase, leaving the planet in the system after. Just a thought. Here's a Wild flare suggestion: When you lose an encounter as the defensive player, send one additional ship to warp. You may take all ships about to land on your planet and place them on an adjacent planet instead.
Logistica: Weaker Amoeba?
Lonestar: Slightly weaker Deuce? (Eon alien)
A few aliens seemed iffy, either because they were so close to old aliens or just wording, but the good ones sound really good! My favorites are the first three, Apotheosis, Banish, and Industry. I also quite like Oblivion, and Terraform seems neat but maybe problematic. Thanks for sharing!