About 62 miles, or 100 kilometers up, is where the edge of space meets Earth—at least according to the definition of the Karman line.

The burgeoning space industry and the technologies society increasingly relies on—electric grids, aviation and ...

Earth has rarely looked as remarkable as it does in this stunning shot (above) captured by NASA astronaut Don Pettit from the ...

Japanese scientists have created the first-ever long-term dataset about Earth's entire atmosphere, stretching all the way to space.