Today’s high-tech spacesuit materials are a far cry from the cotton and rubber used by early high-altitude pilots.

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HOUSTON -- To the moon and beyond. For decades, that has been the goal of NASA and its world-famous space crews. One integral part of that mission has been Black astronauts, who are chronicled in ...

National Geographic Explorer Mackenzie Calle spent 14 days in a Mars simulation program to prepare for humanity's future in space. Photographer Mackenzie Calle prepares for a simulated space walk at ...