is there helium 3 on the moon?

[waxi]

i read that the moon has lots of helium 3 which is rad but explain to me EXPLAIN TO ME!!! if the moon has not enough gravity to hold an atmosphere and helium doesn't attach it self to minerals since it is an inert nobel gas how and why would you find it there? does anyone know?

[RAV1D]

I read somewhere that below the surface of the moon their could be water trapped under there some scientists recon, They often do tests on rocks from the moon and find evidence that at one time water had got trapped in them rocks.The moon was once just a lot of dust particles floating in space that all came together making one big piece all these particles some dust others lumps of rock would of once come from elsewhere in space. old stars that died and burnt out and exploded etc. other gasses and particles can well be trapped in these rocks or dust particles still when they all came together to form what we know as our moon.There well be traces of Helium 3 also trapped in the moon.There is so much we still don't know about our planet so anything is possible out there on the moon.

[jake-the-peg]

Firstly I take issue with the word lots, (It may have lots in comparison with what is in Earth) between there is between 0.01 and 0.02 parts per million.

That is roughly the same concentration of gold in seawater

In the Earths atmosphere there is roughly .007 ppm so the difference isn't quite as much as it's made out.

My geology isn't good enough to tell you precisely how it happens but the Helium 3 comes from the solar wind and gets embedded in the lunar dust I'd guess electrostatic forces probably play a role in keeping it there.

The main reason for wanting He-3 is that it's a nice fuel for fusion reactors in that it doesn't produce neutron which make fusion reactors rather radioactive.

However in order to do that you have to reach very much higher temperatures than current reactors and so it's a bit out of our grasp.

Frankly if you can solve that problem irratiating Hydrogen and Helium to create He-3 should be easy.

I don't think we'll be mining the moon for He-3 any time soon!

[Clanad]

Additionally, but not particularly germain to this topic is the curent theory of the Moon's "development"... quite interesting and has a lot of factual information to support it.
Somewhere near 4 billion years ago (keeping in mind the Sun and out solar system is around 4.8 billion years old) a Mars size body struck the Earth at a precise angle and the debris resulted in the formation of the Moon.
Seen here:
http://solarsystem.na...display.cfm?ST_ID=446
and here:
https://www.youtube.com/watch?v=2sr-MriOCzw