{"product_id":"hello-earthling-the-junior-operators-guide-to-ham-radio-morse-code-15-real-missions-that-actually-work-cosmos-kids-field-guide-series-by-arthur-cosmos","title":"Hello, Earthling!: The Junior Operator’s Guide to Ham Radio, Morse Code \u0026 15 Real Missions That Actually Work (Cosmos Kids Field Guide Series) by Arthur Cosmos","description":"\u003cp\u003eYou are about to learn one of the coolest things a human can do: send invisible messages through the air — and maybe listen for messages from very, very far away. Welcome, Junior Operator. Hello, Earthling! is a hands-on field guide that turns curious kids into real signal hunters. Inside this mission: How radio waves work — explained with jump ropes, wiggles, and zero boring parts Morse code you can actually decode, with practice transmissions to crack 15 real missions to complete before you get your license A Junior Operator Signal Log to record everything you hear Packed with Cosmos Facts, decoder puzzles, quizzes, and a notebook section for your own theories about the Wow! Signal. Book 1 of the Cosmos Kids Field Guide Series — real science for curious humans ages 6 to 12.\u003c\/p\u003e","brand":"Independently published","offers":[{"title":"Default Title","offer_id":48153458278585,"sku":"8181393455","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0793\/7871\/0713\/files\/71T0cjv6wuL._AC_SL1500.jpg?v=1784228393","url":"https:\/\/www.bestbuybook.com\/products\/hello-earthling-the-junior-operators-guide-to-ham-radio-morse-code-15-real-missions-that-actually-work-cosmos-kids-field-guide-series-by-arthur-cosmos","provider":"BestBuyBook","version":"1.0","type":"link"}