The Year of the Outer Solar System

(The Guardian Science) – Ian Sample:

It has been an exceptional year in space. The face of Pluto emerged from the gloom to reveal a dazzling landscape of ridges, ice mountains and plains of solid nitrogen hundreds of miles wide. Robots on the ground and in the sky above Mars found ancient water marks and then evidence that water flows there today, leaving dark streaks on the walls of craters and gullies. Another probe plunged through frigid geysers that spray from Enceladus, one of Saturn’s moons : the vapour propelled by hydrothermal energy in a global ocean under the surface. …

theguardian…2015/dec/25/2015-big

SpaceX Falcon 9 rocket start

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