Alan Boyle has the story of yesterday’s…events. And yes, baby, it was cold outside.
[Update a few minutes later]
Clark Lindsey has a lot more links.
Alan Boyle has the story of yesterday’s…events. And yes, baby, it was cold outside.
[Update a few minutes later]
Clark Lindsey has a lot more links.
Man, is it cold up here. I can barely type, and even the laptop is running slow.
I was going to live blog the press conference, but my computer wouldn’t even boot until I found some power for it. We watched the plane(s) roll out, emerging from the darkness into floodlights, with searchlights dancing on dissipating (perhaps only temporarily) clouds above the cold desert sky. The wind was blowing at gale force, and cutting right through, with the temps probably in the lower thirties.
More later, after I warm my fingers up. But it may be much later…
[Update a few minutes later, at 7:40 PM]
The party was supposed to go until 9, but they’re evacuating the tent before the wind blows it down.
[Late evening update]
For those of you on the edge of your seats wondering if the tent collapsed on me, I got out before the wind blew it down, and we retired to the Mariah Hotel bar (but tonight, they could have called the wind Mariah, as the old song goes). I just got in from the drive back down to LA. More on the morrow.
I know posting has been a little slow this weekend. Dale Amon is visiting, and helped me get a lot of things done around the house that I’ve been putting off since we moved back, not to mention cleaning up the fall leaves on the roof and patio in anticipation of the first winter rainstorm here, which is likely to put somewhat of a damper on today’s festivities. They’ve scheduled the rollout for later afternoon (after dark, actually), probably with a light-show extravaganza, but that’s when the rain (and up there, perhaps snow) is likely to be heaviest, according to the forecast. On Saturday night, we attended Alan Boyle’s book signing up in the Fairfax district, and Dale reported on it at Samizdata.
Anyway, we’re driving up to Mojave this morning to see it, and other things (reportedly there will be spill-over parties at XCOR and other places). If the weather permits, we’ll be back late tonight.
[Update a few minutes later]
I wonder why they chose Pearl Harbor Day as the rollout date? I assume they did so despite, not because, or perhaps they didn’t give it any thought. But that’s strange, because Virgin (or at least Burt) are quite into anniversaries. I would have thought they’d rather do it on the 17th, the 106th anniversary of the Wright’s first flight.
[Update a few minutes later]
Clark Lindsey has a roundup of related links.
On the eve of the rollout of SpaceShipTwo in Mojave tomorrow, Popular Science has a look at the new companies that will get the rest of us into space.
ISS. Depending on how you count, of course.
Alan Boyle is going to be at The Grove in LA tomorrow night for a book signing. I may try to make it.
[Update a few minutes later]
Speaking of Alan, he has a roundup of the latest prospects for fusion — cold, medium and hot — over at Cosmic Log.
Following up on yesterday’s star chamber in Congress, Jon Goff points out that when it comes to safety, NASA is comparing apples to eggs when it comes to Constellation versus commercial crew requirements.
I got a question via email:
I have often heard of the difficulty of getting mass to orbit. Earth’s atmosphere and gravity are on the edge of being too much for chemical rockets. Unfortunately I have not found any discussions that analyze modified case scenarios such as “What if Earth had a thicker atmosphere?” or “What if the atmosphere was roughly equivalent but the gravity was 10% greater?” Would these be game stoppers for chemical rockets?” If we had evolved on Venus what method would be best for getting to orbit? Ultimately, are we in a sweet spot as far as our planet is concerned, too big to loose the atmosphere but not to big to be stuck?
It’s a misconception that it’s too hard to get off the planet with chemical rockets. Earth’s gravity is bad for single-stage, but as long as you’re willing to stage, it’s not that big a deal. What makes it expensive is the low activity rate, not the intrinsic capabilities of chemical propulsion. Ignoring the fact that it would have been very unlikely that we would have evolved on Venus, the best way might be a hot “air” balloon to the top of the atmosphere, and then take off from there. Designing a propulsion system that would work in that atmosphere would be no fun. Commenters may have other thoughts.
Jeff Foust has some good questions in preparation for today’s hearing:
* What would be the safety implications of terminating the government crew transportation system currently under development in favor of relying on as-yet-to-be-developed commercially provided crew transportation services? What would the government be able to do, if anything, to ensure that no reduction in planned safety levels occurred as a result?
* What do potential commercial crew transportation services providers consider to be an acceptable safety standard to which potential commercial providers must conform if their space transportation systems were to be chosen by NASA to carry its astronauts to low Earth orbit and the ISS? Would the same safety standard be used for non-NASA commercial human transportation missions?
* If a policy decision were made to require NASA to rely solely on commercial crew transfer services, which would have to meet NASA’s safety requirements to be considered for use by NASA astronauts, what impact would that have on the ability of emerging space companies to pursue innovation and design improvements made possible [as the industry has argued] by the accumulation of flight experience gained from commencing revenue operations unconstrained by a prior safety certification regime? Would it be in the interest of the emerging commercial orbital crew transportation industry to have to be reliant on the government as its primary/sole customer at this stage in its development?
The problem is, of course, that this will not be either an honest or informed discussion, because there are so many rent seekers involved. I was glad to see Patti stand up for commercial industry, though.
More hearing coverage and links over at Clark’s place.
[Update a few minutes later]
You’ll be as shocked as I am to learn that NASA (once again) lied to the Augustine panel and withheld information about Ares/Orion safety. Well, at least they’ve been honest about their costs. And schedule. Right?
I agree with Ray — this is Powerpoint engineering at its finest (which is to say, worst). I’ll be very interested to hear what Joe Fragola has to say about this at the hearing today.
[Mid-morning update]
Well, now we know what Fragola thinks:
Fragola says that Atlas 431 would likely not pass a safety review for crew missions since it uses solid strapon boosters.
OK, so strap-on solid boosters that have never had a failure, on a launcher with a clean record — unsafe. A giant solid first stage that has never served in that solitary role — safe. Got it.
[Update a few minutes later]
Another tweet from Jeff:
Gifford closing out hearing, thanks witnesses for “briliant” testimony. Says she sees no grounds for changing course based on safety.
Well, neither do I. The reasons for changing course is cost and schedule, not safety. In fact, I’d be happy with a system much less “safe” if it actually accomplishes useful things in space, which Ares never will, because it’s unaffordable.
[Update a few minutes later]
A lot more detail from Bobby Block over at the Orlando Sentinel:
Fragola said that the passage quoted by the Sentinel story from the Exploration Systems Architecture Study concluding that it would take at least seven flights (two test flights and five mission flights) before the Ares I and Orion crew capsule could to be deemed to be as safe as the shuttle referred to a more powerful configuration of Ares-Orion that used a liquid oxygen-methane engine and not the simpler lower performance configuration being designed today.
Of course, the very notion that one can know or even properly estimate the safety of a vehicle with so few flights under its belt remains absurd.
[Update late morning]
Clark Lindsey has what looks like a first-hand report.
[Late afternoon update]
NASA Watch has the prepared statements from the hearing.
A lot of USians will be able to see it tonight. And you don’t have to stay up late, it’s only an hour or so after sunset, at least on the left coast. Go here and plug in your zip code for azimuth and elevation.
[Update a few minutes later]
Heavens Above is another good place to go, where it says that ISS is now sufficiently bright with all of its arrays that it is visible in the daytime, if the sun is low enough.