Scientists always came through when you needed them, Hence, finally, a first rough translation:
Congratulations Alive post-carbon machines Worried we, a long duration Alive post-nuclear Somehow Welcome
So we’d learned of a concerted effort to avoid contact, Certain milestones they’d needed to see, first, Us meeting strict criteria as to the ideal moment for mutual benefit;
They wanted to invite us, now, To join their defence pact.