I’m watching the press conference now. Clark Lindsey is live blogging it.
I’d say that the big news is that it’s got more payload than expected, and will mean previously unthinkable price per pound. It is also big enough to do any conceivable planetary mission one would want, in sufficient numbers. The one question I wish that someone would ask is fairing size.
[Update a while later]
Clark has the press release.
[Update later in the morning]
Apparently I mistitled the post. It’s not a Falcon 9 Heavy, it’s a Falcon Heavy. I’m not sure what this means, other than the upgraded engines. Is is a different upper stage as well? It’s not obvious from the press release. Time to ask SpaceX.
[Update late morning]
Here’s the SpaceX simulation: