+An **aerostat** is a lighter-than-air aircraft, gaining lift through buoyancy. Unlike [Aircraft](/wiki/aircraft), it uses an enclosed gas – often helium or hot air – to float. These serene sky-craft include [Balloons](/wiki/balloon) and [Airships](/wiki/airship), drifting above the earth.
+## See also
+- [Buoyancy](/wiki/buoyancy)
+- [Lighter-than-air](/wiki/lighter-than-air)
+- [Hot Air](/wiki/hot_air)
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