Research News: Rocks hint that moon had wet past

The News:
Rocks hint that moon had wet past
A new method finds water traces in pebbles collected by astronauts in the 1970s.
By Wendy HansenLos Angeles Times
A new analysis of volcanic glass recovered from the moon decades ago found the rocks contain traces of the constituents of water, challenging a long-held notion that the moon is perfectly dry. Using a technique not available when Apollo astronauts collected the rocks in the early 1970s, scientists were able to detect tell-tale signs of water trapped inside the pebble-like glass. Their discovery suggests water was present deep within the moon between 3.3 billion and 3.6 billion years ago, when the pebbles were formed during violent lunar eruptions.

The Research:
Read the research behind this story in the journal Nature.