When New Horizons flew past Pluto, astronomers were shocked to discover that Pluto is actually red. Where is this redness coming from?
Could Life On Earth Have Come From A Comet? –
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Pluto: The ‘Other’ Red Planet
“What color is Pluto? The answer, revealed in the first maps made from New Horizons data, turns out to be shades of reddish brown. Although this is reminiscent of Mars, the cause is almost certainly very different. On Mars the coloring agent is iron oxide, commonly known as rust.”
New Horizons: Exploring Pluto and Beyond
“New Horizons is a NASA spacecraft that was the first to visit dwarf planet Pluto in July 2015. Its pictures of the dwarf planet’s icy surface, as well as observations of Pluto’s moon Charon, are revolutionizing our understanding of solar system objects far from the sun.”
Here’s why New Horizon’s post Pluto destination is important
“Far, far past Pluto, the most distant object humanity has ever visited, there’s a tiny world fainter than any seen in that part of our solar system. Its dark orbit reaches a billion miles beyond the former ninth planet. But 2014 MU69, as it’s labeled by astronomers, is just a few dozen miles across – too scant to be spherical.”
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