Are we alone in the universe? It's a question that's been posed again and again.
And nearly 50 years after the first of two landers touched down on Mars, we're no closer to an answer as to whether there's life out there.
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Are we alone in the universe? It's a question that's been posed again and again.
And nearly 50 years after the first of two landers touched down on Mars, we're no closer to an answer as to whether there's life out there.