Dave Goes to the "Edge of the Earth"

Dave trained all this week for the ride of a lifetime in a U-2 spy plane in "The Early Show"'s "Edge of the Earth" series.

The day of his flight finally came Thursday. He flew to 70,000 feet -- the outskirts of the earth's atmosphere. He finally got to see the Earth's curvature.

The sky was clear at dawn. Dave's pilot, Luke Lokowich, said it was a "great" day to fly.

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