The messages instantly encouraged a stream of gossip about what the announcement could be. Noticeably, while Bergin replied to Twitter users who proposed it might be about a new kind of spacecraft thruster called an EM Drive to say it was not this idea, he did not replied to those who asked if it might be about the Mars Colonization Transport.
In a recent post on NASASpaceFlight, Mr Bergin said: “So I better explain. Yes, I am extremely excited. I personally think it's the most exciting info I've ever had the privilege of seeing. I can say to you, with a lot of confidence, everything one hopes SpaceX is, has been promising and may become, is more than you could have hoped for.”