Here’s a nice animation of ISS assembly. One of the most tragic things about the current approach to the Vision for Space Exploration is that it completely ignores all of the experience gained in orbital assembly over the past decade, instead reverting to Apollo on Geritol.
[Update a couple minutes later]
What a coincidence. I just got an email titled “Gee, Scolese Sounds Like A Critic Of ESAS” (I don’t know if the sender wants to be attributed):
I’m watching the Appropriations hearing, and in response to a question from Chairman Mollohan re plans for moon exploration, etc… Scolese talks about ISS as an example of success at assembling complex systems in LEO and that he would like to see NASA come up with an architecture to build things and then go explore.
Gee. What a concept.
You’ll have to get the transcript, but it sounds pretty treasonous…
At this point, just making Scolese the formal administrator is sounding pretty good to me.
[Update early afternoon]
Rob Coppinger is live twittering the hearing (not a permalink). And he has some thoughts on Scolese’ testimony as well:
In an extraordinary exchange between NASA acting adminisrator Christoper Scolese and the US House of Representatives’ committee on appropriations’ subcommittee on Commerce, Justice, Science, and Related Agencies chair, Scolese said that the agency was still working on what “return to the Moon” meant and whether that was a outpost, which he went on to describe as expensive, or an extended sortie like Apollo
So much for Apollo on steroids…
Let’s hope.
[Late afternoon update]
Here’s more extensive coverage of the testimony:
“We were looking at an outpost on the moon, as the basis for that [2020] estimate and that one is being revisited,” he said. “It will probably be less than an outpost on the moon, but where it fits between sorties, single trips, to the moon to various parts and an outpost is really going to be dependent on the studies that we’re going to be doing.”
“Recall [that] the Vision [for Space Exploration] was not just to go to the moon as it was in Apollo, it was to utilise space to go on to Mars and to go to other places,” he added. “We’ve demonstrated over the last several years that with multiple flights we can build a very complex system reliably – the space station – involving multiple nations…and we’ll need something like that if we’re going to go to Mars.”
Scolese’s further comments hinted that the agency’s plans might shift to include a greater emphasis on destinations beyond the moon. “So what I would like to see from NASA over time is an architecture that…will give us flexibility for taking humans beyond low-Earth orbit and allowing us to have options for what we can do at the moon as well as other destinations…[like] Mars or an asteroid…so that there are options on what we do in 2020,” he said.
Good news, bad news. The good news is that (as noted up above) he’s more interested in building an in-space infrastructure than Mike Griffin ever was. The bad news is that he’s backing off from the commitment to a lunar outpost. On the other hand, the in-space infrastructure may allow a revisiting of that issue if it can be shown to reduce the costs of lunar operations. And ESAS would never have allowed an affordable lunar outpost in any event. The activity rate would have been far too low.
[Bumped]