What is the internationally recognized altitude boundary defining the edge of space, known as the Kármán line?

Answer

100 kilometers (about 62 miles)

The internationally recognized standard for the boundary between Earth's atmosphere and outer space is the Kármán line, situated at an altitude of 100 kilometers, which is approximately 62 miles above sea level.

What is the internationally recognized altitude boundary defining the edge of space, known as the Kármán line?

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