Hello Liza, three answers to your question I think.
1. Nasa landed, Lazers and 144Mhz signals have been 'bounced' off Luna, done it myself in Bristol in the 80's. Filton and North Bristol Amateur Radio Group
2.Light reflection from the dark side of the Moon is still relatively high compared with the further distance objects that Hubble, (HST),was designed for let alone the difference in terms of focus.
3. Why? How many times do we as a spieces need to visit the Moon to disprove, myself I doubt the existence of the New World and their clap-trap theories.
3+ you might try straightdope.com for a thorough answer. LOL.
Peter