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Water.Day_view on planet earth from space
When gravity nearly disappears

On the ISS, surface tension pulls liquid into the smallest shape. Boiling generates bubbles 30x faster than on Earth.

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Water.Day_town with frozen river
Water is the only substance that expands when it freezes

Frozen water expands 9%, cracking pipes and splitting rocks—but it also makes ice float, keeping fish alive.

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Water.Day_water droplets on car window
Water can be liquid at -40°C without freezing

"Supercooled" water stays liquid way below freezing until you tap it—then it instantly turns to ice before your eyes.

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Water.Day_yellow modern house in Enschede Netherlands
Modern homes are dirtier than ever

Urban pollution, microplastics, and device off-gassing mean we're cleaning more intensively than any generation in history.