"Everybody’s going to know if you paid to be a passenger on a five-minute flight or if you’re the commander of an interplanetary vehicle.”

100 kilometers is how the Swiss-based World Air Sports Federation defines the line.

Experiencing has little to do with altitude. It's a minutes-long version of the sensation people experience when they reach the peak of a big roller-coaster 🎢 hill

edition.cnn.com/2025/04/13/sci

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