Flight

Seven guesses. Climb 100 km to the Kármán line, where space begins.

30

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How to fly

BRIEFING · READ BEFORE BOARDING

1
Guess the number. Every question has a numeric answer. Type your best guess.
2
Pick how sure you are. A narrower range pays more, if the answer lands inside it.
3
Climb.
4
Reach space.

CLUE ×1

Once a flight, see a window the answer sits in. That question scores half.

THERMAL ×2

Every 7-day streak earns one. Miss a day and it keeps your streak alive.

100 KM

Why KÁRMÁN?

The Kármán line, 100 km up, is where space officially begins. It's named after Theodore von Kármán, who showed that around that height the air is too thin for wings. Above it, only rockets fly, and that's your finish line.