Ever since mankind realised that the Earth was not the centre of the Universe, we have asked ourselves the question: Are we alone? Could the seed of life have taken root on other planets in our solar system? We finally sent a probe to test for life on Mars in 1976.The answer came back a resounding no. But the idea of life beyond Earth is not dead. As we continue to discover the diversity of life on Earth, we are forced to stop and marvel at how tenacious life is. As we forge onward in our robotic explorations of other worlds, we are surprised to find other places where conditions seem to be right for life. As we struggle to piece together the past of our neighbouring planets, we begin to wonder whether life may have once been widespread there, but has now receded. Viking was not the final word, not for Mars, not for the Solar System. From the depths of Mars to moons of Saturn and Jupiter we’re on the hunt for life again.
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