Speaking as a former ORBITEC employee and lunar mining engineer, I can say a few things about the regolith simulant.<div><br></div><div>First, it's *really* fine. Like affect-your-lungs fine. I recommend a simple $2 paper mask, which should suffice. Second, it's not quite as microscopically jagged as the real stuff, but they do a pretty good job. Basically, you're not really going to get any agglutinates (fused grains) that you would from real regolith.</div>
<div><br></div><div>But it's the closest (by far) you'll get anywhere. And no, they don't just dig it up and ship it out. There's quite a bit of post-processing to get the correct grain-size distribution.</div>
<div><br></div><div>:brad<br><div><br></div><div><br><div class="gmail_quote">On Mon, Apr 16, 2012 at 11:49 AM, cole santos <span dir="ltr"><<a href="mailto:cksantos85@gmail.com">cksantos85@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">moon regolith, epic, thanks for the link<br>
<br>
that could be useful for many projects. we have some areas here in<br>
hawaii that are commonly used as moon and mars simulation areas.<br>
Mostly old lava flows.<br>
<div class="HOEnZb"><div class="h5"><br>
On Mon, Apr 16, 2012 at 6:27 AM, Luke Weston <<a href="mailto:reindeerflotilla@gmail.com">reindeerflotilla@gmail.com</a>> wrote:<br>
>> What would be interesting: Grow bacteria on nothing but moon soil. Taake<br>
>> some soil, add water, atmosphere and bacteria. Will they thrive? -> If so,<br>
>> phosphorus etc. is in the moon soil.<br>
>><br>
><br>
> We already know a great deal about the geology and mineralogy of the<br>
> moon, and the chemical composition of the lunar regolith.<br>
><br>
> There's no wheel there that needs to be reinvented, and no fundamental<br>
> new discovery that needs to be made.<br>
><br>
> <a href="http://en.wikipedia.org/wiki/Lunar_soil" target="_blank">http://en.wikipedia.org/wiki/Lunar_soil</a><br>
><br>
> You can also commercially buy standard JSC-1A lunar regolith simulant<br>
> from Orbitec, which is interesting:<br>
><br>
> <a href="http://www.orbitec.com/store/simulant.html" target="_blank">http://www.orbitec.com/store/simulant.html</a><br>
><br>
> They even have Mars regolith simulant too :)<br>
><br>
> There is some existing research and literature in this area,<br>
> indicating that certain types of life, such as cyanobacteria, will<br>
> grow on lunar regolith (or simulant) when water (and other factors<br>
> such as light, if appropriate) is added along with an appropriate<br>
> artificial atmosphere.<br>
><br>
> For example:<br>
><br>
> <a href="http://www.lpi.usra.edu/meetings/lpsc2008/pdf/1673.pdf" target="_blank">http://www.lpi.usra.edu/meetings/lpsc2008/pdf/1673.pdf</a><br>
><br>
> If you got some regolith simulant, autoclaved it or something to make<br>
> sure it's sterile (along with all your other equipment and vessel, got<br>
> some sort of benign sample of appropriate bacteria or cyanobacteria<br>
> from an appropriate biology supplier (ATCC or whatever the go-to<br>
> people are for that sort of thing these days) and supplied an<br>
> appropriate gaseous atmosphere from a gas cylinder, and added some<br>
> distilled water, and supplied some light on the vessel, I suppose it<br>
> wouldn't be too difficult to reproduce such an experiment.<br>
> Interesting.<br>
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</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br>Bradley Grzesiak<br>co-founder, bendyworks llc<br><a href="http://bendyworks.com/" target="_blank">http://bendyworks.com/</a><br>
</div></div>