> It's very expensive to send a science mission to check on the remains of a previous mission. Apollo 12 intentionally landed within walking distance of Survey

> It's very expensive to send a science mission to check on the remains of a previous mission. Apollo 12 intentionally landed within walking distance of Surveyor 3 [0]. [0] https://en.wikipedia.org/wiki/Apollo_12 https://en.wikipedia.org/wiki/Apollo_12