For most of the time we have known about Pluto, it was a smudge. Even the Hubble Space Telescope cou...
Pluto was expected to be a frozen, cratered relic, but when New Horizons flew past in 2015 it found flowing nitrogen glaciers, mountains of water ice and hints of a hidden ocean, on a world where the Sun looks like just a bright star
For most of the time we have known about Pluto, it was a smudge. Even the Hubble Space Telescope could resolve it only into a few blurry pixels.
Author: Space Daily
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