The Wormhole wrote:
I suppose we could assume that Constellation was the flagship of a task force of smaller ships which were either destroyed by the Machine (and not mentioned) or left behind at a starbase while Constellation checked out something which turned out to be more serious than they orignially believed.
Since neither option is even remotely suggested by anything in the episode, why would we assume this? Decker even refers to his command as the Constellation,
as if all he were was a senior captain.