Tory Bruno provided an update on the investigation into the Vulcan mishap and discussed when to expect next ULA launch.

and may have significant effects on both the overall efficiency of the propulsion system and on the plume radiation signature. Al2O3 particles expelled from solid-propellant rocket motors may account ...

Different rocket nozzles, orientations ... porosity and shear strength," said Connolly. "The engine plume of a lunar lander, after blowing off the loose upper layer of regolith, will continue ...