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- Newsgroups: sci.space
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!cs.utexas.edu!torn!utzoo!henry
- From: henry@zoo.toronto.edu (Henry Spencer)
- Subject: Re: future space travel
- Message-ID: <C0M9q3.A01@zoo.toronto.edu>
- Date: Sun, 10 Jan 1993 02:32:25 GMT
- References: <rabjab.7.726624045@golem.ucsd.edu>
- Organization: U of Toronto Zoology
- Lines: 41
-
- In article <rabjab.7.726624045@golem.ucsd.edu> rabjab@golem.ucsd.edu (rabjab) writes:
- >If they don't find water on the moon, I have a hard time believing that
- >there will ever be large colonies there...
- >Mars will be the only real place for a large colony, but then again,
- >if there isn't anything there that's very interesting (like life or
- >fossils) I can't see large colonies being placed up there...
- >Maybe in the next 100-200 years biology will advance to the point
- >where Venus could be altered with microbes...
-
- Why do you assume a colony must be on a *planet*? As the late Gerard
- O'Neill pointed out a number of years ago, this is an error. Open space
- is a *better* place to colonize, given availability of resources from
- the Moon or the asteroids.
-
- Also, why do you assume that colonies are motivated by research? Not so.
- Bases, yes, but not colonies. Colonies are motivated by either money or
- freedom, broadly and loosely speaking: either there's a buck to be made
- and permanent residents are cheaper than migratory workers, or else the
- residents find life at home intolerable enough to spend a lot of money
- going somewhere where they can run their lives their own way.
-
- >Seems like the future will see expanding development of robotic systems
- >that will be used to explore every planet and moon, at a vastly
- >reduced cost over sending humans.
-
- It is yet to be established that this can be done effectively, except
- perhaps on the Moon where speed-of-light lags are short. Just flying
- around and taking pictures is the easy part. Interacting with a complex
- planetary surface, without minute-by-minute human attention, is vastly
- more problematic. None of the currently-proposed Mars robots, for
- example, is going to have anywhere near the fossil-hunting efficiency
- of even an amateur paleontologist. Unless robotics improves greatly,
- in-depth investigation of planetary surfaces will still require humans.
-
- Note, also, that human space exploration need not be impossibly costly.
- See, for example, Zubrin's "Mars Direct" proposal for a way of doing
- *human* exploration of Mars, in depth, relatively soon, on a budget
- that would barely buy you good robots at NASA prices.
- --
- "God willing... we shall return." | Henry Spencer @ U of Toronto Zoology
- -Gene Cernan, the Moon, Dec 1972 | henry@zoo.toronto.edu utzoo!henry
-