The science case for a modern, multi-wavelength, polarization-sensitive   LIDAR in orbit around Mars
  We present the scientific case to build a multiple-wavelength, active, near-infrared (NIR) instrument to measure the reflected intensity and polarization characteristics of backscattered radiation from planetary surfaces and atmospheres. We focus on the ability of such an instrument to enhance, perhaps revolutionize, our understanding of climate, volatiles and astrobiological potential of modern-day Mars. 
Adrian J. Brown, Timothy I. Michaels, Shane Byrne, Wenbo Sun, Timothy   N. Titus, Anthony Colaprete, Michael J. Wolff, Gorde...
astro-ph.EP