Where Does Space Begin?

Does space begin 100km or 80km above the surface of the earth?

The World Air Sports Federation — or the FAI, for Fédération Aéronautique Internationale — announced on November 30th that it is considering modifying the Karman line — the altitude that is considered the boundary to space. The line is named after Theodore von Karman, a Hungarian engineer and mathematician who first calculated where Earth’s atmosphere becomes too thin for airplanes to achieve flight. For decades, the FAI has set the Karman line at 100 kilometers, or 62 miles high. But now the organization, which is responsible for cataloguing air and spaceflight records, is considering moving it to 80 kilometers, or 50 miles high.

With the new definition, this might be considered a spacefaring frame: