Researchers are using recent advances in imaging to reexamine lunar samples from Apollo 11. Gary Greenberg, a research affiliate at the University of Hawaii Institute for Astronomy, took this 3-D stereo image (cross your eyes slightly until there are three images, then focus on the center) of a single grain of moon sand (magnified here about 300 times). It reveals a ring created by a micrometeorite that struck it. The impact resulted in melting, and as the particle quickly cooled, it created a glassy structure. Greenberg and his colleagues hope viewing these grains in greater detail may help scientists learn more about the moon?s evolution.
Source: http://rss.sciam.com/click.phdo?i=cd692a11c39b72eb82c39f4b80a97b72
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