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White House Panel Seeks Input On Spaceflight Plans
Neil H. writes "The Augustine Commission, commissioned by the White House and NASA to provide an independent review of the current US human spaceflight program and potential new directions, is seeking public input on a document describing the preliminary beyond-LEO exploration scenarios they're analyzing. The destination-based scenarios, designed with NASA's current budget in mind, range from a Lunar Base (essentially NASA's current plan), to 'Mars First' (human exploration of Mars ASAP), to 'Flexible Path' (initially focused on several destinations in shallow gravity wells, such as Lagrange points, near-Earth asteroids, and the Martian moon Phobos). The Commission is also seeking input on the issues of engaging commercial spaceflight, in-space refueling, and coordinating human and robotic exploration."
Even wearing a spacesuit, I betcha I could walk up slopes and around obstacles better than the (admittedly wonderfully performing) Spirit & Opportunity rovers.
And hopefully after a few years of doing so, I wouldn't have to crawl around ass-first all the time.
Which is clearly not the case based on experiences with the mars rovers and similar devices.
Ridiculous. Think of one of the most interesting discoveries made by the Phoenix lander -- the frozen condensate that formed on one of the landing struts. A human would have noticed that immediately and been able to analyze it in detail. Conversely, a robotic probe can do only what it's programmed to do. All we can do is stroke our beards and say "Hmm, wonder what that is?"
When you're not only expecting the unexpected, but hoping for it, you want human boots on the ground. One human mission is easily worth twenty robotic missions.
Hell, NASA should consider offering one-way trips. They'd have enough volunteers to crash their Web server. Most people aren't doing anything that important or interesting with the rest of their lives, are they? Send one old guy with a shovel, a microscope, and a carbon-monoxide canister, and we'll learn more than we would from the next hundred years' worth of robots.
Dahlmann tightly grips the knife, which he may have no idea how to use, and steps out into the plain.
The most important single advance that could help spaceflight, manned and unmanned would be to reduce the cost to LEO. This will require, ultimately, a SSTO (single stage to orbit) launcher. Of course it's tough (remember the X-34? the Delta Clipper?) but that doesn't mean that with new advances in materials (can you say carbon nanotube reinforced composites) it's impossible. Unless we can bring the cost of access to space down by a factor of at least 10 a lot of these dreams will remain just that; dreams.
After that, new low thrust high specific impulse engines would be very useful along with a compact energy source to power them. VASIMIR sounds promising and maybe magnetic sails (which might have the side benefit of protection against cosmic rays). We'll probably need real nuclear reactors in space like the SNAP program (or the Russian equivalent). Remember the words of an airforce general: "a new plane doesn't make a new engine possible, a new engine makes a new plane possible".
Ultimately, of course, a space elevator is the best way to go. There was a proposal, I think, of building one for less than $10B by using a "small" elevator to bring the materials gradually up from earth (rather than trying to capture an carbonaceous asteroid to use as a material source/counterweight). Of course we'll need those carbon nanotubes again!
Anything else we do is grave decoration.
Sending probes or even people to explore Mars, Alpha Centauri or Wolf 359 is a waste if we are wiped out by an asteroid. We have some good theories on how to do it. We need to test them.
Let's practice while we still have the luxury of time... and failure.
Go ahead and go, go anywhere and everywhere...
But actually DO something once you get there, don't just go there to wave your dick around.
I'd really like to see a good sized radio telescope built on the far side of the moon, complete with relay lines to dishes at the terminus between near and far sides, so there's no accidental reflections from earth off of relay satellites instead.
Going further out than LEO would be good also...
I remember reading this PDF of a flight plan from around 40 years ago, where they wanted to send a crew further INTO the solar system, and actually intercept/orbit Venus, using apollo tech.
http://en.wikipedia.org/wiki/Manned_Venus_Flyby
How about a small, self sufficient station at L3?
You'd need a couple of relay sats for comms, but that's a smaller cost than the station.
Alas, none of this will happen though, because we're too adverse to risk these days, and we wouldn't DARE send someone condemned to death out there instead, it'd de-demonize them (serial killer and first man on another planet?).
Plus, have you noticed that most of the studies about going into space for long periods of time involve seeing if people can do with limited to no social interaction?
Yeah, most of US can, but the ones they trust to send up there, CAN'T!
So we gotta settle for unmanned probes.
So fire off at least one every month.
Pick something to study: moon, planet, propulsion tech, comm tech, interstellar phenomenom (this one will take time and would need to be fast).
And if you need some tech to make sure it works (such as an RTG), and people complain about it, ignore them with extreme prejudice.
And more space telescopes!
Seriously, we have barely a handful pointing outwards, but probably hundreds (classified, guess, and hope you're not accurate) looking back down?