Ancient lunar ice indicates the moon's axis slowly shifted by 125 miles, or 6 degrees, over 1 billion years. (sciencedaily.com)
As in the lab, «young people do the grunt work for these things», notes Matt Siegler, a postdoc studying lunar ice at the JPL. (scientificamerican.com)
The next step, he adds, is to compare the hydrogen and oxygen in samples of lunar ice with those same elements in the volcanic glass samples from Apollo. (discovermagazine.com)