Frozen volatiles which include h2o ice are a lot more reflective to S-band radio waves than lunar rocks. Radio waves even have various characteristics when reflected off ice than off silicate rock. An Assessment from the indicators returned from orbit 234 showed reflection qualities suggestive of water ice for that https://icecapsmoonrock80134.bloguerosa.com/26052087/the-ultimate-guide-to-ice-caps-moonrock