Caitlin and Brian Gregg are taking a giant leap for cross-country ski racers around the world and heading to space in June to test the effects of super-high altitude (more specifically, zero gravity) on endurance performance.
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Caitlin and Brian Gregg are taking a giant leap for cross-country ski racers around the world and heading to space in June to test the effects of super-high altitude (more specifically, zero gravity) on endurance performance.