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Landmarks / Kármán line

Kármán line

100 km, the common boundary of space.

Real height
100 km
Points needed
465
Zone
Near space
Landmark
12 of 25
Pixel art of Kármán line

About Kármán line

The Kármán line, 100 km above sea level, is the most widely used border between the atmosphere and space. It is named after the engineer Theodore von Kármán, who worked out that above this height a wing would have to fly faster than orbital speed to stay up.

There is no wall or sign: the air simply thins out gradually. Some agencies, including the United States, use a slightly lower line of about 80 km when awarding astronaut wings.

Kármán line in Clamber

You reach this landmark at 465 points. It is landmark 12 of the 21 between the ground and the Moon, which waits at 930 points. Its real height is about 2.4 times that of the previous landmark, Highest skydive.

Answers are worth 0 to 100 points depending on how rare they are, so even a run of nothing but the rarest answers needs at least 5 holds to get here. A fall drops you to just below the last landmark you passed, so a landmark you have reached can slip away again. See how to play for the full rules.

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