Luna 3
This craft was launched on the 4th of October 1959, weighing 278.5 kilos. The Luna 3 craft was the first spacecraft to photograph the dark side of the Moon. It had its closest approach on the 6th of October before it preceded to the dark side. All in all, it transmitted some 17 photographs back to Earth until the 22 ndof October 1959 when contact with the probe was lost.