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+keyword:(space sciences.)
The development of microcrater populations on lunar rocks
Micrometeorite craters and related features on lunar rock surfaces
Micrometeorite craters and related features on lunar rock surfaces
Lunar theory and processes - Post-sunset horizon 'afterglow'
Lunar theory and processes - Discussion of chemical analysis
Luna 9 photographs - Evidence for a fragmental surface layer.
Critique of ''cometary impact and the origin of tektites.''