Science & Futurism with Isaac Arthur cover image

Dark Sky Stations, Stratospheric Satellites, and Ultra Low Orbit Infrastructure (Narration Only)

Science & Futurism with Isaac Arthur

00:00

How Far Away Is the Horizon?

Communication satellite up in go stationary orbit is high enough to see most of a hemisphere. Signal lags too small for human notice. Hot airballoon would seem the next option, or just one full of helium or hydrogen and needing no fuel. In theory, a thousand such stationary balloon calm stations could cover a whole planet.

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