Astroboticβs lander didnβt make it to the Moon because of a failed valve
Seven months after its first lunar lander fell short of reaching the Moon, Astrobotic announced Tuesday that the spacecraft was stricken by a valve failure that caused a propellant tank to burst in orbit. The company's next landing attempt, using a much larger spacecraft, will include fixes to prevent a similar failure.
Astrobotic's first Peregrine lander, which the company called Peregrine Mission One, launched on January 8 aboard United Launch Alliance's first Vulcan rocket. But soon after separating from the rocket in space, the lander ran into trouble as it stepped through an activation sequence to begin priming its propulsion system.
A review board determined "the most likely cause of the malfunction was a failure of a single helium pressure control valve called a PCVβpressure control valve 2, within the propulsion system," said John Horack, a space industry veteran and professor of aerospace and mechanical engineering at Ohio State University.