C. E. Schlemm

TL;DR: X-ray fluorescence spectra obtained by the MESSENGENGER spacecraft orbiting Mercury indicate that the planet's surface differs in composition from those of other terrestrial planets as discussed by the authors, and this observation, together with a low surface Fe abundance, supports the view that Mercury formed from highly reduced precursor materials, perhaps akin to enstatite chondrite meteorites or anhydrous cometary dust particles.

TL;DR: The Energetic Particles and Ion Composition (EPIC) instrument as discussed by the authors is designed to measure the characteristics of particle populations important to understand the make-up and dynamics of the earth's geomagnetic tail.

TL;DR: The High Energy Neutral Atom (ENA) imager (HENA) as mentioned in this paper was designed to image the ENA emitting regions of the inner magnetosphere with 2 minute time resolution, at angular resolution of 8 degrees or better above the energy of ∼ 50 keV/nucleon.

TL;DR: The LOng-Range Reconnaissance Imager (LORRI) is the high-resolution imaging instrument for the New Horizons mission to Pluto, its giant satellite Charon, its small moons Nix and Hydra, and the Kuiper Belt.

TL;DR: The X-Ray Spectrometer (XRS) onboard the MESSENGER spacecraft has been used to measure the surface elemental composition of the terrestrial planets by observing the Kα lines for the elements Mg, Al, Si, S, Ca, Ti and Fe as discussed by the authors.