The SEDS@CGUHS Space Propulsion Systems Special Interest Group (SPS-SIG) successfully demonstrated the operation of their version of the 0.1 Ion Thruster model. The SIG, chaired by CGUHS junior Ivanna Perez, set out to demonstrate the principles of ion propulsion as is currently used on NASA spacecraft exploring the solar system. The students are currently gathering data from the operation of this device to analyze and make improvements to their device. Currently, the ion thruster is not performing as anticipated, but with more information resulting from their study, the students are looking forward to discoveries that will lead to further success. The Cougars are advised by John Morris, CTE/Mathematics Teacher. Visit www.cguhsd.org/cgSEDS.aspx.