Luna E-1 No.1, was a Soviet Luna E-1 spacecraft which was intended to impact the Moon. It did not accomplish this objective as it was lost in a launch failure. It was the first of four E-1 missions to be launched.
Luna E-1 No.1 was a spacecraft which marked the first Soviet attempt to send a spacecraft to the Moon. It was also the first mission of the Luna programme. The spacecraft was intended to release of sodium, in order to create a "comet" of the metal which could be observed from Earth, allowing the spacecraft to be tracked. The booster lifted and flew until T+92 seconds when it suddenly exploded. This failure was traced to the resonant vibration issue that occurred on Sputnik 3 last spring and thought corrected, but the addition of the Blok E stage increased the length of the booster and moved its center of gravity. As the strap-on propellant tanks began emptying near the end of their burn, increased vibration began to shake them until it finally ruptured the propellant feed lines and caused an explosion.