George's best friend, Annie, needs help. Her scientist father, Eric, is working on a space project -- and it's all going wrong. A robot has landed on Mars but is behaving very oddly. And now Annie has discovered something weird on her dad's supercomputer.
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Is it a message from an alien? Could there be life out there? How do you find a planet in outer space? And if you could talk to aliens, what would you say?
An action-packed roller-coaster ride into a dramatic treasure hunt across the cosmos, this terrific adventure is filled with the latest scientific knowledge about our universe, including special essays from some of the top scientists in the world.