NASA: Pluto Has Blue Sky

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...

© La Voix de l'Amérique - jeudi 8 octobre 2015