Luna programme became the first probe to achieve a soft landing on another planetary body. It returned five black and white stereoscopic circular panoramas, which were the first close-up shots of the Lunar surface. "Luna 10" (March 1966) became the first artificial satellite of the Moon. "Luna 17" (November 1970) and "Luna 21" (January 1973) carried the Lunokhod vehicles, which roamed around on the Moon's terrain. Another major achievement of the Luna programme, with "Luna 16" (September 1970), "Luna 20" (February 1972) and "Luna 24" (August 1976), was the ability to collect samples of lunar soil and return them to Earth. The
Konrad Dannenberg a rocket engine for the V-2 ballistic missile. He was at Peenemünde on 3 October 1942 to witness the launch of the first man-made object to reach outer space, a V-2 rocket. This was the first man-made vehicle to reach space based on a then-current definition of 50 miles in altitude (see Kármán line for relevant background). Many improvements on which he worked could not be completed in time for production. After Thiel's death in an August 1943 bombing raid, a design freeze stopped all development efforts. Dannenberg then became Walter Riedel's deputy and headed the crash effort to finalize