Project A119, also known as A Study of Lunar Research Flights, was a top-secret plan developed in 1958 by the United States Air Force. The aim of the project was to detonate a nuclear bomb on the Moon
Cover of A Study of Lunar Research Flights – Volume I
The explosion was intended to occur along the Moon's terminator, for maximum visibility from Earth.
The Lunar Crater Observation and Sensing Satellite was a robotic spacecraft operated by NASA. The mission was conceived as a low-cost means of determining the nature of hydrogen detected at the polar
Project A119
…proposals "obscene", adding, "had they gone ahead, we would never have had the romantic image of Neil Armstrong taking 'one giant leap for mankind'". LCROSS—A NASA project which used a kinetic impact to study the presence of water on the Moon Angelo, Joseph A (2007). Human Spaceflight (illustrated ed…
LCROSS spacecraft, artist's rendering
The flash from the LCROSS Centaur impact.
An illustration of the LCROSS Centaur rocket stage and Shepherding Spacecraft as they approach impact with the lunar south pole on October 9, 2009.
LRO (top, silver) and LCROSS (bottom, gold) prepared for fairing