Surface Sputtering Confirmed as Source of Moon Water.

Recently it was announced that several probes had unequivocally shown that OH (hydroxyl radical) and H2O (water) were present at the surface of the moon in minute quantities. However, it was unclear how it got...

Spectra Confirm Ice on Asteroid 24 Themis. How Did it Get There?

It seems that space age instruments are now finding evidence of water-ice in the many locations we have pointed them to look. The latest to be confirmed includes asteroid 24 Themis. But is it from subsurface...