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Articles on Curious Kids

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Pluto, the largest of the dwarf planets. This image was taken by NASA’s New Horizons spacecraft. NASA/JHUAPL/SwRI

What is a dwarf planet?

The dwarf planets in our Solar System are cold, dark, far away and full of surprises.
Children march in a parade marking the 70th anniversary of the end of the Second World War, in Rostov-on-Don, Russia, about 100 kilometres east of the Ukraine border, in May 2015. (AP Photo)

Curious Kids: Why did Putin invade Ukraine now? Is it for the U.S.S.R. again?

Russian President Vladimir Putin wants parts of Ukraine to be closer to Russia, and would like to prevent Ukraine from becoming part of NATO.
Memorial tanks at the Ukrainian Motherland Monument in Kyiv. Madeleine Kelly/SOPA Images/LightRocket via Getty Images

Why did Russia invade Ukraine?

Who are the Ukrainians and when were they part of the same empire as Russia? A scholar answers basic questions on war in Ukraine.
No matter its cause, diarrhea is uncomfortable. Rapeepong Puttakumwong/Moment via Getty Images

Why do people get diarrhea?

Poop comes in many shapes, sizes and textures. The kind that’s too runny might be the result of wayward germs, Crohn’s disease or lactose intolerance.
Step away from the cotton swabs! Crazytang/iStock via Getty Images Plus

What is earwax?

That brownish/yellowish gunk that comes out on your finger if you scratch deep inside your ear? It actually serves an important purpose in your body.

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