Encore: Moonshots for the 21st Century: A Fareed Zakaria GPS Special

A CNN Special dedicated to the dreamers and scientists that have moved humanity forward through extraordinary acts like sending astronauts to the moon. On this special we focus on 5 moonshots that are likely to impact human history the most: 1 - Sending Astronauts to Mars 2 - 3-D Printing a Human Heart 3 - Creating a Star on Earth - ITER Project 4 - Flying from New York to London in an Hour 5 - Mapping the Human Brain Moonshots are exciting, expensive - are they worth it? The answer is, "Yes." China is on course to pass the United States in spending on research and development and basic research in the coming years.

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