gas balloons

Lighter-than-air spheres

Gas balloons are balloons filled with a gas lighter than air—typically helium or hydrogen—allowing them to rise and float.

Unlike hot air balloons, which rely on heated air, gas balloons stay aloft through buoyancy alone.

They range from party decorations to crewed aircraft used in long-distance races and scientific research: The gas balloon drifted silently over the countryside.

Opposites
lifting mechanism

gas balloonshot air balloons

Buoyant craft lifted by warmth

flight principle

gas balloonsairplanes

Powered flying vehicles

helicopters · gliders · jets · rockets · drones

balloon filling substance

gas balloonswater balloons

Projectiles filled for soaking

sandbags · lead weights

Family

balloon

Familiarity
Top 500,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Positive · Everyday, not technical · Rated G