Comments on: Ice on the Moon? Debate Resumes http://www.universetoday.com/2008/12/29/ice-on-the-moon-debate-resumes/ Space and astronomy news Sat, 21 Nov 2009 21:17:24 -0600 http://wordpress.org/?v=2.8.6 hourly 1 By: Steve http://www.universetoday.com/2008/12/29/ice-on-the-moon-debate-resumes/comment-page-1/#comment-48010 Steve Tue, 30 Dec 2008 21:10:28 +0000 http://www.universetoday.com/?p=22853#comment-48010 What Im interested to see is how practical it is to try and extract 1% worth of water from an entire surface and what processes would be feasable to do so. What Im interested to see is how practical it is to try and extract 1% worth of water from an entire surface and what processes would be feasable to do so.

]]> By: Gary Ansorge http://www.universetoday.com/2008/12/29/ice-on-the-moon-debate-resumes/comment-page-1/#comment-48008 Gary Ansorge Tue, 30 Dec 2008 20:49:45 +0000 http://www.universetoday.com/?p=22853#comment-48008 Since the average person ingests about 2 to 3 liters of H2O per day, that 200 billion liters would supply 1000 people with H2O for 200,000 years. I think that would be enough for most practical purposes. One should note: Plans to develop an industrial infra-structure on Luna use mass drivers for payload launches, which require no H2O. Only personnel carriers would require H2O as reaction mass and since it's so bloody expensive to get to the moon, round trips for personnel would probably be minimized. Since the average person ingests about 2 to 3 liters of H2O per day, that 200 billion liters would supply 1000 people with H2O for 200,000 years.

I think that would be enough for most practical purposes. One should note: Plans to develop an industrial infra-structure on Luna use mass drivers for payload launches, which require no H2O. Only personnel carriers would require H2O as reaction mass and since it's so bloody expensive to get to the moon, round trips for personnel would probably be minimized.

]]> By: LLDIAZ http://www.universetoday.com/2008/12/29/ice-on-the-moon-debate-resumes/comment-page-1/#comment-47997 LLDIAZ Tue, 30 Dec 2008 18:58:05 +0000 http://www.universetoday.com/?p=22853#comment-47997 I dont see how a few pockets of water across an entire landscape is going to sustain a lunar base of any size. For water or fuel its just not enough we would still need to supply any permanent sites with water which would cost way too much. I dont see how a few pockets of water across an entire landscape is going to sustain a lunar base of any size. For water or fuel its just not enough we would still need to supply any permanent sites with water which would cost way too much.

]]> By: Joe http://www.universetoday.com/2008/12/29/ice-on-the-moon-debate-resumes/comment-page-1/#comment-47995 Joe Tue, 30 Dec 2008 18:06:13 +0000 http://www.universetoday.com/?p=22853#comment-47995 That would explain why the moon looks icy blue That would explain why the moon looks icy blue

]]> By: elfofgod http://www.universetoday.com/2008/12/29/ice-on-the-moon-debate-resumes/comment-page-1/#comment-47959 elfofgod Tue, 30 Dec 2008 04:47:25 +0000 http://www.universetoday.com/?p=22853#comment-47959 That's a good point. Also, the hydrogen may be from the impactor which made the crater rather then either of the theories mentioned. That's a good point. Also, the hydrogen may be from the impactor which made the crater rather then either of the theories mentioned.

]]> By: Michael Paine http://www.universetoday.com/2008/12/29/ice-on-the-moon-debate-resumes/comment-page-1/#comment-47958 Michael Paine Tue, 30 Dec 2008 04:33:13 +0000 http://www.universetoday.com/?p=22853#comment-47958 Why pin hopes on a miracle when there is plenty of water whizzing around in space on Near Earth Asteroids? http://users.tpg.com.au/horsts/reading.html#ez2 'The Moon's polar regions are suspected of holding frozen water, but the lunar poles are difficult to reach and launching payloads from the Moon is technologically and economically difficult. The obvious source of water is Near Earth Asteroids, asteroids typically contain 10 to 20 percent water in the form of permafrost or saturated minerals. Dormant comets also orbit the Sun near the Earth, and these "dirty snowballs" likely contain more than 50 percent water...' (written in 1999) Why pin hopes on a miracle when there is plenty of water whizzing around in space on Near Earth Asteroids?
http://users.tpg.com.au/horsts/reading.html#ez2
'The Moon's polar regions are suspected of holding frozen water, but the lunar poles are difficult to reach and launching payloads from the Moon is technologically and economically difficult. The obvious source of water is Near Earth Asteroids, asteroids typically contain 10 to 20 percent water in the form of permafrost or saturated minerals. Dormant comets also orbit the Sun near the Earth, and these "dirty snowballs" likely contain more than 50 percent water…' (written in 1999)

]]> By: Greg http://www.universetoday.com/2008/12/29/ice-on-the-moon-debate-resumes/comment-page-1/#comment-47955 Greg Tue, 30 Dec 2008 03:33:52 +0000 http://www.universetoday.com/?p=22853#comment-47955 One plus one equals? The hydrogen concentrations are concentrated at some impact sites, ie like if a comet impacted as opposed to say an asteriod. The concentrations therefore are shaded from solar radiation. So how can these deposits be a result of cumulative hydrogen ion impacts from solar radiation? One plus one equals? The hydrogen concentrations are concentrated at some impact sites, ie like if a comet impacted as opposed to say an asteriod. The concentrations therefore are shaded from solar radiation. So how can these deposits be a result of cumulative hydrogen ion impacts from solar radiation?

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