[Yeah, no. Science. There is a reason he leaves it to Spock. It's not that Jim's ignorant in the area, it's just that it's definitely not his forte. He gives Spock a sideways glance, and one corner of his mouth quirks up.]

Christ, I missed having you around.

[It's an honest, earnest statement, and he laughs, a little incredulous. It seems a little juvenile to yell Spock's back! from the rooftops but that's honestly what he feels like doing. Seeing members of his crew always puts him in the best mood, even if he doesn't exactly like them being trapped here with him. Hopefully it'll take some of the pressure off Chekov, too. Poor kid's been wracking his brain trying to get them home. Doing his best, but he needs a breather, and maybe Spock can provide it.]

Already handled the communicator thing, though. It's how I tend to link up with the others. Uh-- speaking of others. Bones and Chekov are here too.

[His mouth thins.]

And Khan. He's from before that whole mess with Marcus, so he's pretty ignorant. I'd like to keep him that way if we can.