Private U.S. Moon mission in jeopardy A private moon mission attempting to make the first U.S. lunar soft landing in half a century is in jeopardy after a failure in the propulsion system resulted in a “critical loss” of fuel VULCAN CENTAUR: New rocket developed by United Launch Alliance – successfully lifted lunar lander on Jan 8 Height: 61.6m Diameter: 5.4m Mass: 546,700kg Peregrine lander built by Astrobotic Technology Centaur second stage RL10 engines Fuel: Liquid hydrogen, liquid oxygen Two solid rocket boosters BE-4 engines Fuel: Liquefied natural gas and liquid oxygen Booster Intended touchdown: Lava plain on near side of Moon Mare Imbrium Apollo 11 Fuel leak from Peregrine, just hours after separation from rocket, preventing lander from achieving stable position pointing towards Sun PEREGRINE LUNAR LANDER Carries five NASA instruments to study Moon’s surface environment ahead of human missions later this decade Propellant tank Solar panel Thrusters Antenna Engines 1.9m Sources: NASA, Astrobotic Technology, ULA Pictures: NASA, Astrobotic © GRAPHIC NEWS