VOA News
October 08, 2015
Pluto has blue skies and water in ice form, according to the first color photos recently taken by NASA’s New Horizons spacecraft.
“Who would have expected a blue sky in the Kuiper Belt? It’s gorgeous,†said Alan Stern, New Horizons principal investigator from Southwest Research Institute (SwRI), Boulder, Colorado in a statement.
NASA said the particles that cause the blue haze are likely gray or red, but that they scatter blue light in the same way tiny nitrogen particles cause the Earth’s skies to appear blue.
On Pluto, the scientists said the particles called tholins are likely larger and “soot-like.â€
The photos also revealed the presence of “numerous small, exposed regions of water ice†on the dwarf planet.
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