Energomash raises alarm over U.S. ban on Russian rocket engines
RD-180 provider seeks additional ULA engine order
Nearly every engine stockpiled for use on upper stages of Proton rockets has defects, investigation concludes
Russia Moves Forward with Industry Consolidation
ULA Could Buy as Many as 30 More Russian-made RD-180 Engines
Orbital Sciences Orders RD-181 Engines for Antares Rocket