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Articles on Curious Kids

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The Punch Powertrain Solar Team car from Belgium competes in the 2017 World Solar Challenge near Kulgera, Australia. AP Photo/Geert Vanden Wijngaert

Why aren’t there solar-powered cars?

It’s common to see solar panels on rooftops and fields, but they aren’t widespread on cars − yet.
The queen, on the right with a larger, darker body, is bigger than the worker bees in the colony and lives several times longer. Jens Kalaene/picture alliance via Getty Images

Why do bees have queens? 2 biologists explain this insect’s social structure – and why some bees don’t have a queen at all

A queen’s main job in the hive is to lay eggs and pass genes on to offspring. But many bee species do just fine without queens or big colonies.
Leap Day is coming. Marvin Samuel Tolentino Pineda/iStock, via Getty images

Why does a leap year have 366 days?

Humans have synced their calendars to the sun and moon for centuries, but every so often, these systems need a little correction.

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