Preparing to Install APXS Sensor Head
Jet Propulsion Laboratory https://www.jpl.nasa.gov/ Oct. 13, 2009
Grad student Nicholas Boyd (left) and Principal Investigator Ralf Gellert, both of the University of Guelph, Ontario, Canada, prepare for the installation of the Alpha Particle X-ray Spectrometer sensor head during testing at NASA's Jet Propulsion Laboratory.