The Naked Scientists

The Naked Scientists Forum

Author Topic: Water on the dark side of the moon.  (Read 4819 times)

Offline Lunavasser

  • First timers
  • *
  • Posts: 5
    • View Profile
Water on the dark side of the moon.
« on: 19/06/2006 03:17:05 »
Amazing to think there is water on the dark side of the moon, I wonder what else is in it?

Stimulus, psyche and meditation pose more questions than answers.


 

ROBERT

  • Guest
Re: Water on the dark side of the moon.
« Reply #1 on: 19/06/2006 15:22:38 »
Apparently there is water ice on the moon, but not liquid water.

"    To the delight of the planetary scientists, there were telltale signs of water ice mixed in with the lunar soil. Apparently the ice extends down to about 50 feet in an area of 40 square miles!
 
      The mystery comes into play when the question is asked about how the ice got there in the first place. Analysis of all the rock samples brought back by the Apollo missions tell us that the moon is a dry place. So it is not possible that the water came from within the moon. So from where did it come?

      The best explanation for the water ice on the moon may be with comets. Comets have longed been dubbed "dirty snowballs." This is because they are composed largely of water ices and other compounds, including organic compounds.  If a comet impacted onto the surface of the moon, it is highly possible that some of the ice could have been trapped in the dark recesses of a crater.

      It is probable the over the last 3 billion years, thousands of comets have hit the moon. An impact or two could  easily be responsible for the ice on the moon."

http://starryskies.com/articles/dln/3-97/moon.ice.html
« Last Edit: 19/06/2006 15:23:56 by ROBERT »
 

Offline daveshorts

  • Moderator
  • Neilep Level Member
  • *****
  • Posts: 2583
  • Physics, Experiments
    • View Profile
    • http://www.chaosscience.org.uk
Re: Water on the dark side of the moon.
« Reply #2 on: 20/06/2006 10:02:27 »
There isn't actually a dark side of the moon, there is a side which we never see though. However as the moon isn't angled over like the earth, there could be some craters at the poles which never get light, this is where some of the water is thought to be hiding. And I guess that even outside the crater, the poles are going to be pretty cold, so there could be water in the soil.
 

Offline neilep

  • Withdrawnmist
  • Naked Science Forum GOD!
  • *******
  • Posts: 20602
  • Thanked: 8 times
    • View Profile
Re: Water on the dark side of the moon.
« Reply #3 on: 21/06/2006 00:09:04 »
Why is there water on the moon

When it was created , presumably as the consequence of another planetoid playing Snooker with the Earth, would there have already have been an abundance of water on the Earth then ?.......but besides that...as the result of the collision, surely the moon would have just been a big gloopy hot molten blob of moony non-H2O'ness

Men are the same as women, just inside out !
 

ROBERT

  • Guest
Re: Water on the dark side of the moon.
« Reply #4 on: 21/06/2006 15:37:20 »
quote:
Originally posted by neilep

Why is there water on the moon

When it was created , presumably as the consequence of another planetoid playing Snooker with the Earth, would there have already have been an abundance of water on the Earth then ?.......but besides that...as the result of the collision, surely the moon would have just been a big gloopy hot molten blob of moony non-H2O'ness

Men are the same as women, just inside out !



The theory is that water could persist in craters at the poles of the moon which are always in darkness so are always cold enough to retain water as ice. Water anywhere else on the moon would escape into space, not accumulate into oceans as on earth.

http://www.exn.ca/Stories/2000/06/19/54.asp
 

Offline neilep

  • Withdrawnmist
  • Naked Science Forum GOD!
  • *******
  • Posts: 20602
  • Thanked: 8 times
    • View Profile
Re: Water on the dark side of the moon.
« Reply #5 on: 21/06/2006 15:39:51 »
Thanks Robert...but what I was (poorly) attempting to say, is how did the water get on the moon in the first place ?...during it's creation would not have any water vapour present just boiled off ?

Men are the same as women, just inside out !
 

ROBERT

  • Guest
Re: Water on the dark side of the moon.
« Reply #6 on: 21/06/2006 15:59:52 »
quote:
Originally posted by neilep

how did the water get on the moon in the first place ?...during it's creation would not have any water vapour present just boiled off ?



Icy comets deliver water to the earth and the moon.
If a comet landed near a pole of the moon its water could possibly survive as ice in a permanently dark (cold) crater.
 

Offline neilep

  • Withdrawnmist
  • Naked Science Forum GOD!
  • *******
  • Posts: 20602
  • Thanked: 8 times
    • View Profile
Re: Water on the dark side of the moon.
« Reply #7 on: 21/06/2006 16:25:44 »
quote:
Originally posted by ROBERT

quote:
Originally posted by neilep

how did the water get on the moon in the first place ?...during it's creation would not have any water vapour present just boiled off ?



Icy comets deliver water to the earth and the moon.
If a comet landed near a pole of the moon its water could possibly survive as ice in a permanently dark (cold) crater.



DOH !!!...of course. !!..I'm such a dufus head !!!..I think I've lost my ' penny dropping mechanism ' somewhere ...I'm frustrated that I didn't figure that out for myself....think I've been away too long !!! :)

THANK YOU

Men are the same as women, just inside out !
 

Offline tony6789

  • Neilep Level Member
  • ******
  • Posts: 1127
    • View Profile
Re: Water on the dark side of the moon.
« Reply #8 on: 22/06/2006 14:46:52 »
it is impossible for there to be water on the dark or light side of the moon. there is no atmosphere to hold it in and it would eventually evaporate cause there is no atmosphere to perfom the cycle of evaporation. and the moon has already been fully scaned no life has ever been on  the moon so that means no H20

NEVER! underestimate youth
 

ROBERT

  • Guest
Re: Water on the dark side of the moon.
« Reply #9 on: 20/10/2006 17:59:36 »
" Doubt cast on lunar ice deposits  

By Paul Rincon
Science Reporter, BBC News, Wednesday, 18 October 2006.
 
Nasa hopes to return humans to the Moon by 2020
Hopes that the Moon's south pole has significant water ice deposits that could be used to set up a lunar base appear to be unfounded, a study says.

Hypothesised deposits of lunar water-ice have figured in Nasa's planning for future Moon landings.

This resource would be invaluable for supplying bases and making fuel for propelling spacecraft beyond the Moon.

The study in Nature journal suggests radar echoes thought to be from frozen water could be from rocky debris.

The simplest explanation is that we're looking at a signature due to [impact debris] from the crater and not some strange signature due to water ice

Jean-Luc Margot, Cornell University
The first evidence for water-ice deposits came from radar observations made by the US Moon orbiter Clementine, launched in 1994.

According to mission scientists, values for a radar signature called the "circular polarisation ratio (CPR)" indicated frozen water below the dust in craters near the lunar south pole that were shaded from the Sun.

The Clementine researchers also admitted that this radar signature could be created by echoes from rough terrain and walls of impact craters.

In the latest study, Donald Campbell of Cornell University in Ithaca, New York, and colleagues suggest the latter explanation is the more likely. "

http://news.bbc.co.uk/1/hi/sci/tech/6061984.stm

 
 

Offline lightarrow

  • Neilep Level Member
  • ******
  • Posts: 4586
  • Thanked: 7 times
    • View Profile
Re: Water on the dark side of the moon.
« Reply #10 on: 21/10/2006 07:44:32 »
quote:
Originally posted by Lunavasser

Amazing to think there is water on the dark side of the moon, I wonder what else is in it?
Maybe people who is skying?
 

Offline syhprum

  • Neilep Level Member
  • ******
  • Posts: 3818
  • Thanked: 19 times
    • View Profile
Re: Water on the dark side of the moon.
« Reply #11 on: 21/10/2006 12:20:59 »
I think the people who own the fishing rights have erected one of those invisitabilty screens that they are going on about in THE NEWSCIENTIST

syhprum
 

Offline Ophiolite

  • Hero Member
  • *****
  • Posts: 716
  • Thanked: 6 times
    • View Profile
Re: Water on the dark side of the moon.
« Reply #12 on: 21/10/2006 23:28:19 »
quote:
Originally posted by tony6789
it is impossible for there to be water on the dark or light side of the moon. there is no atmosphere to hold it in and it would eventually evaporate cause there is no atmosphere to perfom the cycle of evaporation.
If it is present in the regolith as ice, which is what is being suggested, there is no problem at all for it to exist - as long as it remains in the dark.
quote:
Originally posted by RobertIf a comet landed near a pole of the moon its water could possibly survive as ice in a permanently dark (cold) crater.
The comet would not need to land near the pole. Water in the comet would evaporate and gradually disperse around the moon long before it had been lost to space. During lunar night it would freeze. The water finding itself over the permanently dark spots would freeze in place - permanently.

Observe; collate; conjecture; analyse; hypothesise; test; validate; theorise. Repeat until complete.
 

Offline dgdavisjr

  • First timers
  • *
  • Posts: 9
    • View Profile
Re: Water on the dark side of the moon.
« Reply #13 on: 22/10/2006 03:07:53 »
Water, even as vapor, has mass and is effected by gravity. Even sublimated from ice to vapor, it could not escape the moon's gravity and would eventually accumulate in areas where it could no longer evaporate due to lack of solar energy. It would, however, likely be a very thin coating of frost, useless for most purposes unless it's depositing source was either very large, very slow, or both.

D.G.Davis,Jr.
 

Offline lightarrow

  • Neilep Level Member
  • ******
  • Posts: 4586
  • Thanked: 7 times
    • View Profile
Re: Water on the dark side of the moon.
« Reply #14 on: 22/10/2006 10:36:16 »
quote:
Originally posted by Ophiolite

If it is present in the regolith as ice, which is what is being suggested, there is no problem at all for it to exist - as long as it remains in the dark.
Sorry, what is "the regolith"?
 

The Naked Scientists Forum

Re: Water on the dark side of the moon.
« Reply #14 on: 22/10/2006 10:36:16 »

 

SMF 2.0.10 | SMF © 2015, Simple Machines
SMFAds for Free Forums