WASHINGTON — Quantum Space is acquiring propulsion technologies and facilities from Phase Four to support development of its Ranger maneuverable spacecraft. The company announced Sept. 22 it acquired Phase Four’s multi-mode propulsion technology and its integration and test facility in Southern California. Phase Four’s multi-mode propulsion technology allows a thruster to operate both as a chemical thruster, providing high thrust, and as an electric thruster, offering greater efficiency. Quantum Space said it plans to use the technology on Ranger, its line of spacecraft for commercial and government missions in Earth orbit and cislunar space. “Acquiring Phase Four’s multi-mode propulsion assets marks a major inflection point for Quantum Space,” Kerry Wisnosky, the company’s chief executive, said in a statement.