Editing Clementine (spacecraft) (section)

==Bistatic Radar Experiment==
The "[[Bistatic radar|Bistatic Radar]] Experiment", improvised during the mission, was designed to look for evidence of [[lunar water]] at the Moon's poles. Radio signals from the ''Clementine'' probe's transmitter were directed towards the Moon's north and south polar regions and their reflections detected by [[NASA Deep Space Network|Deep Space Network]] receivers on Earth. Analysis of the magnitude and [[Polarization (physics)|polarisation]] of the reflected signals suggested the presence of volatile ices, interpreted as including water ice, in the Moon's surface soils. A possible ice deposit equivalent to a sizeable lake was announced. However, later studies made using the [[Arecibo Observatory|Arecibo radio telescope]] showed similar reflection patterns even from areas not in permanent shadow (and in which such volatiles cannot persist), leading to suggestions that ''Clementine''{{'}}s results had been misinterpreted and were probably due to other factors such as surface roughness.<ref>[https://nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=1994-004A-09 Clementine Bistatic Radar Experiment], NASA</ref><ref>[http://nssdc.gsfc.nasa.gov/planetary/ice/ice_moon.html Ice on the Moon], NASA</ref><ref>[http://www.psrd.hawaii.edu/Dec96/IceonMoon.html Ice on the Bone Dry Moon], Paul D. Spudis, December 1996</ref>