Cassini’s Saturn swansong

November 21, 2017

On 15 September, a fireball streaked down through the atmosphere of Saturn. It was the funeral pyre of an extraordinary spacecraft, which had spent 13 years in orbit around the ringed planet. During that time, NASA’s Cassini had made remarkable discoveries. In fact, one of these – that, incredibly, life may exist among Saturn’s icy moons – was the reason its engineers chose to incinerate the craft when its fuel was almost gone, rather than risk it accidentally crashing and contaminating an alien biology… Read more (New Humanist Subscribe)

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