... Space Research Institute . ... Launched in 2011. Hend (short for High Energy Neutron Detector) instrument onboard Mars Odyssey mission (NASA) to study Martian surface composition and to search for water ice on the surface and in the upper layer of the regolith in particular. ... Mars Express (ESA) mission for Mars remote sensing. ... BTN-M ?1 for BTN-Neutron experiment for fast and thermal neutron studies onboard Service Module within Russian Orbital Segment of International Space Station (ISS). ...