NASA Works to Improve Solar Electric Propulsion for Deep Space Exploration

NASA has selected Aerojet Rocketdyne, Inc. of Redmond, Washington, to design and develop an advanced electric propulsion system that will significantly advance the nation's commercial space capabilities, and enable deep space exploration missions, including the robotic portion of NASA’s Asteroid Redirect Mission (ARM) and its Journey to Mars.

April 19, 2016
from NASA http://go.nasa.gov/23XNEZ7