KnowraLuna 3Linked fromLinked fromThe 4 pages that link to Luna 3, each with the reason it gives.All 4Broader topic 3Related 1Sergei KorolevBroader topic: The mission extended Korolev's early program from Earth orbit to lunar exploration.Luna programBroader topic: Its flyby method produced the first images of terrain hidden from Earth.Luna 2Related: It followed Luna 2 and used the same early lunar-probe program to achieve a different milestone.Far side of the MoonBroader topic: Its images first showed what the hidden hemisphere looked like.