Here's what we've learned from Nasa's Curiosity rover in its four years on Mars
On 6 August 2012, a one-tonne, nuclear-powered, robot hit the red dust of the Martian surface. Its name was Curiosity. With a hum of electronics, it unfolded its instruments and began an exploration mission unlike any that had come before.The primary goal was to find evidence about whether Mars has ever harboured conditions that were conducive to life...
I regard the brain as a computer which will stop working when its component fail. There is no heaven or afterlife for broken-down computers. That is a fairy story for people afraid of the dark