Accelerate progress in our three core enterprises — Explore Worlds, Find Life, and Defend Earth. You can support the entire fund, or designate a core enterprise of your choice.
Valley glaciers on Pluto Ice (probably frozen nitrogen) that appears to have accumulated on the uplands on the right side of this 630-kilometer wide image is draining from Pluto’s mountains onto the informally named Sputnik Planum through the 3- to 8- kilometer wide valleys indicated by the red arrows. The flow front of the ice moving into Sputnik Planum is outlined by the blue arrows. The origin of the ridges and pits on the right side of the image remains uncertain. NASA / JHUAPL / SwRI