Water? Forum: Spacesettlers
Thread: Water?
# 8476 byspace.action@... on July 5, 2006, 3:37 p.m.
Member since 2021-10-03
There's no mystery and no real need to go to any for eyeballing except for
curiosity, science, and mining. Spectroscopy already tells us what's
there.. and what specific asteroids are composed of.
few hundred ppm in the lunar regolith). M-type asteroids are about 99%
metal. C-type asteroids have 5% to 20% water.
Part of selecting an asteroid for mining would be, of course, from a
comparison of each candidate's spectroscopic data.
The lunar surface, by contrast, has no native water. Solar wind implantation
of hydrogen on the lunar surface offers up to about 50 ppm hydrogen, which,
if fully released and fully converted into water, would optimistically give
the lunar surface about 0.045% water. Overall, the lunar surface is
volatile-poor and metal-poor. Any larger concentrations of water are likely
to be found in some of the craters and we know what caused many of those
thingies.
George
cygo.com
On 7/5/06, sraj wrote: