Frozen volatiles like h2o ice are way more reflective to S-band radio waves than lunar rocks. Radio waves also have distinct traits when mirrored off ice than off silicate rock. An Evaluation on the alerts returned from orbit 234 showed reflection traits suggestive of h2o ice for that forever shadowed https://arthurblxhr.amoblog.com/a-secret-weapon-for-ice-caps-moonrock-50727872