How amateur radio is connecting astronauts in space with kids on Earth 

 The Amateur Radio on the International Space Station (ARISS) aims to inspire and educate youth in STEM through connecting astronauts in orbit with people on the ground. 

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https://www.space.com/space-exploration/international-space-station/how-amateur-radio-is-connecting-astronauts-in-space-with-kids-on-earth