Astronaut Ron Garan says space travel for all will make the Earth a better place

There is a small but growing set of people who have had the opportunity to see the Earth as a planet, and view its changing seasons and weather patterns from above. Astronauts are a rare breed: men, and, increasingly, women, who have orbited the Earth and seen it suspended below them as a canvas of colour and movement. Astronauts who have gone even further have seen it turn into the "pale blue dot" described so emotively by Carl Sagan.

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