Pluto's snowcapped mountains are unlike any on Earth (earthsky.org)
Posted by Paul Scott Anderson in Space | October 16, 2020
With their tall peaks reaching into the sky and and their snow glistening in the sun, snowcapped mountains on Earth are beautiful. Other planets, like Mars and Venus and even some moons, also have mountains, but they lack the scenic snow cover of earthly mountains. One notable exception, though, was discovered in 2015 by the New Horizons spacecraft, when it made its sweep through the outer reaches of our solar system. Im talking about the snowcapped mountains of Pluto!
Not only does Pluto have mountains, which was a bit surprising given its small size, but Plutos mountains also have snow on their peaks. There is one significant difference, though, between the mountains of Earth and Pluto. The snow or frost on Pluto consists of frozen methane (CH4) instead of water ice crystals.
Meanwhile, Plutos mountains themselves are composed of rock-hard water ice.
The new research, by an international team of scientists led by researchers from Centre National de la Recherche Scientifique (CNRS) in France, was announced on October 13, 2020.
The associated peer-reviewed paper was published in
Nature Communications on the same day.
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more:
https://earthsky.org/space/methane-snowcapped-mountains-on-pluto-new-horizons
https://www.nature.com/articles/s41467-020-18845-3