Unit L Activity 5 In-Class Movie To show and then play a movie, click on the arrow or the movie title/description. Repeat to hide it. UL A5 Movie: Laser-ranging the Moon UL A5 Movie: Laser-ranging the Moon Original video on YouTube: Sending a Laser to the Moon - Horizon - Explore BBC © 2009 BBC Explore.   Next Gen PET Student Resources Home Page Copyright © 2017 Next Gen PET