Images/videos may be used by the media and the public for educational and informational purposes only

Ralph Instrument Pluto Maps

ralph-instrument-pluto-maps-D023111.jpg

Ralph Instrument Pluto Maps
Image Courtesy of NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute
New Horizons not only showed humanity what Pluto looks like, but also provided information on the composition of Pluto’s atmosphere and surface. These maps — assembled using data from the Ralph instrument — indicate regions rich in methane (CH4), nitrogen (N2), carbon monoxide (CO) and water (H2O) ices. Sputnik Planitia shows an especially strong signature of nitrogen near the equator. SwRI scientists combined these data with Rosetta’s comet 67P data to develop a proposed “giant comet” model for Pluto formation.