This nicely explains the relay's orbit and the trajectory they took to get there: http://www.planetary.org/blogs/guest-blogs/2018/20180615-queqiao-orbit-explain

This nicely explains the relay's orbit and the trajectory they took to get there: http://www.planetary.org/blogs/guest-blogs/2018/20180615-queqiao-orbit-explainer.html http://www.planetary.org/blogs/guest-blogs/2018/20180615-que...