Delivery of cargo to the moon
The first manmade object to reach the moon, the earth’s largest and only natural satellite, was on September 14, 1959 by the unmanned Soviet spacecraft Luna 2. The spacecraft crashed into the lunar surface with a speed of 3.3 km/sec in the area of Sea of Showers near crater Aristides, Archimedes, and Autolycus, creating a crater in the diameter of 15 to 130 meters on the lunar surface.
Luna 2 carried two pennants with explosives made up of 72 pentagons: 12 with a regular geometrical shape which bore the USSR emblem and embossed letters, and 60 irregularly shaped pentagons bearing the writing: USSR September 1959. One of the pennants, diameter of 150mm, was installed on the third stage of the rocket and the second pennant, diameter of 90mm, was installed on the spacecraft itself. The plan was, upon impact with the lunar surface, that the explosives inside the pennant would trigger, the energy from one of the pentagons would counteract and would equal out, and the pennant would remain on the lunar surface.