What is the altitude of the globally recognized Kármán line boundary of space?
Answer
100 kilometers (about 62 miles)
The Kármán line is the internationally accepted threshold that demarcates the boundary between Earth's atmosphere and outer space. This boundary is specifically defined as being situated at an altitude of 100 kilometers above sea level. While the United States has used an alternative benchmark for certain domestic purposes, the 100-kilometer mark remains the standard recognized globally for defining where space begins. The text notes that Jeff Bezos’s flight successfully surpassed this 100-kilometer mark, reaching approximately 107 kilometers, thereby crossing the internationally recognized boundary.
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