{"product_id":"explore-alliance-presents-how-do-you-know-episode-29-dark-matter-part-2","title":"Explore Alliance Presents: How Do You KNOW? – Episode #29: 'Dark Matter Part 2'","description":"\u003cdiv title=\"Page 1\" class=\"page\"\u003e\n\u003cdiv class=\"layoutArea\"\u003e\n\u003cdiv class=\"column\"\u003e\n\u003cp class=\"page\" title=\"Page 1\"\u003eIn the second part of Dr. Barth's discussion on dark matter, he touches on why did galaxies form, the missing matter problem, and the Great Attractor. \u003cbr\u003e\u003cbr\u003ehttps:\/\/explorescientificusa.com\/pages\/explore-alliance-presents-how-do-you-know-with-dr-daniel-barth\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e The activities and materials provided free for the How Do You Know? program are based upon Dr. Barth’s award-winning book: \u003ca style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 1.4em;\" title=\"Astronomy for Educators Free e-Book\" href=\"https:\/\/scholarworks.uark.edu\/oer\/2\/\" target=\"_blank\"\u003eAstronomy For Educators\u003c\/a\u003e. This book is used as a resource in more than 5,700 schools across the United States and in more than 50 countries world wide. The book is published as an Open Educational Resource Text by the University of Arkansas Library Press.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca title=\"How Do You KNOW? Index of Programs\" href=\"https:\/\/explorescientificusa.com\/pages\/explore-alliance-presents-how-do-you-know-with-dr-daniel-barth\"\u003eReturn to the How Do You KNOW? index of programs\u003c\/a\u003e. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"page\" title=\"Page 1\"\u003e\n\u003cdiv class=\"layoutArea\"\u003e\n\u003cdiv class=\"column\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":46518265118860,"sku":"sku-40740460167340","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0577\/5858\/0876\/files\/HowDoYouKnow_COLORcopy_706fd5a2-d363-493a-9a07-c4fc40d5fdcf.png?v=1772695487","url":"https:\/\/gobekusa.com\/products\/explore-alliance-presents-how-do-you-know-episode-29-dark-matter-part-2","provider":"GobekUSA","version":"1.0","type":"link"}