{"product_id":"9781429957939","title":"What If the Earth Had Two Moons?: And Nine Other Thought-Provoking Speculations on the Solar System","description":"\u003cp\u003e\"What if?\" questions stimulate people to think in new ways, to refresh old ideas, and to make new discoveries. In \u003ci\u003eWhat If the Earth Had Two Moons, \u003c\/i\u003eNeil Comins leads us on a fascinating ten-world journey as we explore what our planet would be like under alternative astronomical conditions. In each case, the Earth would be different, often in surprising ways. \u003c\/p\u003e\u003cp\u003eThe title chapter, for example, gives us a second moon orbiting closer to Earth than the one we have now. The night sky is a lot brighter, but that won't last forever. Eventually the moons collide, with one extra-massive moon emerging after a period during which Earth sports a Saturn-like ring.\u003c\/p\u003e\u003cp\u003eThis and nine and other speculative essays provide us with insights into the Earth as it exists today, while shedding new light on the burgeoning search for life on planets orbiting other stars.  \u003c\/p\u003e\u003cp\u003eAppealing to adult and young adult alike, this book is a fascinating journey through physics and astronomy, and follows on the author's previous bestseller, \u003ci\u003eWhat if the Moon Didn't Exist?, \u003c\/i\u003ewith completely new scenarios backed by the latest astronomical research.\u003c\/p\u003e","brand":"St. Martin's Publishing Group","offers":[{"title":"Default Title","offer_id":47139278815472,"sku":"9781429957939","price":17.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9781429957939_p0.jpg?v=1763749182","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9781429957939","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}