NASAS OSIRIS-REX mission launches in September 2016 and plans to return a sample of asteroid Bennu to Earth in 2023.
This video profiles a student-built instrument aboard the OSIRIS-REx spacecraft called REXIS - the Regolith X-Ray Imaging Spectrometer.
The purpose of REXIS is to collect and image fluorescent X-rays emitted by the asteroid, which will