Miniature Electrospray Thruster (IMAGE) Air Force Office of Scientific Research Caption A prototype of a miniature electrospray thruster with four rows of ion emitters is shown here. The thruster is contained within two black plates each measuring about one square inch. Credit Credit: Dr. Paulo Lozano, MIT Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.