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Originally Posted by The Bad Astronomer
The American Astronomical Society has released a statement about the Space Vision.
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Originally Posted by AAS
Exploration without science is tourism.
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(Yes, I abridged that to the bumper-sticker version!)
For bystanders, I might throw in some of the background to this carefully-worded statement. Somewhat more than half of astronomical research funding to individual scientists in the US has come from NASA for some years now, a fact which both flows from and encouraged the extraordinary success of a whole range of spaceborne astronomy missions. Those astronomers who don't work on planets that we might send astronauts too have seen the embace of the Vision for Space Exploration as threatening, in the sense that NASA management has at various times seemed to work toward that being the only thing NASA does. Not only was this a subtext many read into the HST servicing decision by Sean O'Keefe, but it has been read into the cancellation or (indefinite?) postponement of several long-running NASA programs (such as the Astrophysics Data Program), and the vanishing of most of the planed missions beyond JWST into what looks like bureaucratic limbo. It's not too much to say that a lot of astronomers have looked at these decisions and, in effect, seen the NASA administration giving them a rude gesture and saying "Thanks for all your teamwork and careful planning over the least decades which helped the Agency look good and be a world leader in science. Now that we've got our marching orders for Buck Rogers, try not to let the airlock door hit you on the way out". (It was interesting to hear Griffin's congressional testimony on C-SPAN in which he said that a firewall had to be in place so that, among oither things, JWST cost overruns didn't impact the human spaceflight effort. I can scarcely imagine even those overruns reaching the level of programmatic uncertainty in implementing the Vision...)
A perennial underlying concern is interruption of the thread of expertise, something X-ray astronomers have had to fight several times. No missions = no support for students in the relevant fields = less young, energetic talent available when new missions appear. What particularly worries me, and has since right before the HST decision was first announced, is that NASA could be loading virtually all its effort on a single project, which could well be shut down by either political or technical factors ten years from now, while ESA and to a lesser extent JAXA and the Russian program have continued a modest but steady deep-space science effort.
(I'm willing to edit if the BA tells me this got a bit too polemical - but I think it's an accurate description of how lots of US astronomers are thinking these days)