Can you bounce a laser off the moon and measure the time it takes for the light to return to Earth?

Well, honey, technically yes, you can bounce a laser off the moon and measure the time it takes for the light to come back, but unless you have some serious equipment and the moon's in the right mood, you probably won't be setting up your own interstellar disco party anytime soon, sweetie. It's been done before, but let's just say it's not exactly your typical backyard science experiment.