SLS Moon / Deep Space Rocket Developers Hoping For Upper Stage Funding

Exploration Mission-2, First U.S. Gov Declared Human Moon Mission Since Apollo 17 In 1972, Planned For 2021 Dependent On Proposed Budget Request Of Additional ~US$500M With $50-100M Devoted To Enhanced Upper Stage For Fiscal Year 2016 (Begins 1 Oct); Bill Hill Of NASA Exploration Systems Development Says With Current $1.356B Budget EM-2 Would Be Pushed Back; Boeing Company To Develop Core / Upper Stages; EM-1 Set For Nov 2018 To Use 1 RL10 Engine Modeled On ULA Delta 4; EM-2 To Use 4 RL10 Engines

Credit: NASA, Spaceflightnow