Luna E-1 No.2, was a Soviet spacecraft which was lost in a launch failure in 1958. It was a Luna E-1 spacecraft, the second of four to be launched. It was intended to impact the surface of the Moon, and in doing so become the first man-made object to reach its surface.
The spacecraft was intended to release of sodium, in order to create a cloud of the metal which could be observed from Earth, allowing the spacecraft to be tracked. As the Pogo oscillation issue on Luna E-1 No.1 could not be adequately resolved due to the rushed launch schedules, a couple of stopgap measures were tried including disabling the propellant utilization system at T+85 seconds and throttling the engines down to reduce structural loads on the stack. The booster flew until T+104 seconds when it exploded once again from vibration rupturing the propellant lines.