This approx. 220-miles (such as about 354,0548-Km) wide view of Pluto - taken, of course, by the NASA - New Horizons Spacecraft - illustrates (---> shows us) the incredible diversity of Surface Reflectivities (---> Albedoes) and Geological Landforms existing on this so-called "Dwarf Planet" (which gets more and more fascinating every day). This picture includes dark, ancient and heavily Cratered Terrain (bottom of the frame); bright, smooth and geologically young Terrain (actually, it is a small portion of Sputnik Planum - look at the very top of the frame); assembled masses of Icy Mountains (center frame) and - last but not least - an enigmatic Field of dark, aligned Ridges that look like Dunes (whose origin is still under debate - look toward the center/right of the picture). The smallest visible Surface Features here are approx. 0,5 miles (such as roughly 0,80467 Km) in size. This image was taken as the NASA - New Horizons Spacecraft flew past Pluto on July 14, 2015, at a distance of about 50.000 miles (such as approx. 80.467 Km) from its Surface. The image (which is an Original NASA - New Horizons Spacecraft's b/w and NON Map-Projected frame published on the NASA - Planetary Photojournal with the ID n. PIA 19933) |