Mountains beside a frozen plain
Processed image. Enhanced-colour photographic mosaic of Krun Macula beside southeastern Sputnik Planitia, combining three July 2015 observations. The right and left camera regions have native scales of about 80 and 125 metres per pixel, acquired six minutes apart; the colour data is coarser at 680 metres per pixel. The seam and palette reflect processing, not a surface change. Collapse-related valleys are an interpretation of the terrain.
NASA factual/editorial mission imagery use · full mission credit; resized to WebP, no endorsement
· Original image source · Image licenceNew Horizons turned a distant dot into a complex landscape.
- World
- Pluto
- Case date or period
- Flyby observations · 14 July 2015
Look closer
The flyby revealed rugged mountain blocks bordering smoother plains. Close views show how sharply different terrains can meet on this small, cold world.
Follow the evidence
Compare the broad scene with the detailed mountain images. The mosaics were made from flyby observations rather than repeated visits, so differences in perspective are not a time-lapse of change.
Mountains can be fragments of an older crust
Jeffrey Moore and colleagues used stereo, limb and shadow measurements to study mountain blocks along Sputnik Planitia. Flat or gently sloping block tops with textures resembling nearby highlands suggest that an older water-ice crust broke apart. The blocks’ height and steep slopes, together with spectral evidence, support a water-ice composition. Softer volatile ice could undermine, transport and rotate fragments, but the largest mountains may remain grounded. This interpretation reconstructs a geological history from shape and composition; the flyby did not directly film blocks breaking or moving.
Read a shoreline at two scales
The southeastern Krun shoreline adds a different highland margin to the mountain views. Follow its deep valleys into the plain, then compare the larger blocks at the western edge. The colour mosaic combines two sharpness levels with a coarser colour observation; sharp boundaries do not make every colour variation equally well resolved. The scene records a landscape, while its proposed collapse history still needs geological interpretation.
Sources & further reading
- The Icy Mountains of Pluto — NASA Image and Video Library / JPL
- A Mountain Range within Pluto Heart — NASA Image and Video Library / JPL
- From Pluto Mountains to Its Plains — NASA Image and Video Library / JPL
- The Geology of Pluto and Charon Through the Eyes of New Horizons — Moore and colleagues — Original research paper / author preprint
- The jagged shores of Pluto’s highlands — NASA / New Horizons mission imaging team