Articles on Curious Kids

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Could an alien world look like this? Shutterstock

Curious Kids: What would aliens be like?

Somewhere out there, just maybe, an alien – probably stranger looking than in our wildest imagination – might be pondering this very question.
Stars come into existence because of a powerful force of nature called gravity. ESA/Hubble & NASA, Acknowledgement: Judy Schmidt

Curious Kids: how are stars made?

Stars begin their life inside very large, fluffy clouds of space dust and gas called nebulae.
A pitcher tries to throw a ball past a batter. AP Images/Eric Gay

Curious Kids: How does a curveball curve?

In baseball, a pitcher can throw a ball that seems to curve away just as it crosses the plate. How do they do it? It's all about aerodynamics.
Grant Elliott/Unsplash.

Curious Kids: why is the sea salty?

The salt in the sea has built up over billions of years – but it wouldn't have got there without freshwater rivers and streams.
The remotely operated vehicle Deep Discoverer captures images of a newly discovered hydrothermal vent field in the western Pacific. NOAA

Curious Kids: How deep is the ocean?

In some places, the ocean is almost 7 miles deep. Scientists exploring the ocean floor have found strange sea creatures, bizarre geologic formations and records of Earth's history.

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