Books›Science & Math›Astronomy & Space ScienceFree returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping chargesLearn more about free returns.To view this video download Flash PlayerKindle $14.99 Read with our Free AppHardcover $19.19 19 Used from $17.00 30 New from $19.19Publisher ‏ : ‎ National Geographic (September 12, 2023)Language ‏ : ‎ EnglishHardcover ‏ : ‎ 320 pagesISBN-10 ‏ : ‎ 1426223307ISBN-13 ‏ : ‎ 978-1426223303Item Weight ‏ : ‎ 1.92 poundsDimensions ‏ : ‎ 6.4 x 1.25 x 9.28 inchesBest Sellers Rank: #247 in Books (See Top 100 in Books) #1 in Astronomy (Books) #1 in Cosmology (Books)#1 in Astronomy (Books)#1 in Cosmology (Books)Customer Reviews: /* * Fix for UDP-1061. Average customer reviews has a small extra line on hover * https://omni-grok.amazon.com/xref/src/appgroup/websiteTemplates/retail/SoftlinesDetailPageAssets/udp-intl-lock/src/legacy.css?indexName=WebsiteTemplates#40 */ .noUnderline a:hover { text-decoration: none; } .cm-cr-review-stars-spacing-big { margin-top: 1px; } 4.5 4.5 out of 5 stars 115 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when('A', 'ready').execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( 'acrLink-click-metrics', 'click', { "allowLinkDefault": true }, function (event) { if (window.ue) { ue.count("acrLinkClickCount", (ue.count("acrLinkClickCount") || 0) + 1); } } ); } }); P.when('A', 'cf').execute(function(A) { A.declarative('acrStarsLink-click-metrics', 'click', { "allowLinkDefault" : true }, function(event){ if(window.ue) { ue.count("acrStarsLinkWithPopoverClickCount", (ue.count("acrStarsLinkWithPopoverClickCount") || 0) + 1); } }); });Sort reviews by Top reviews Most recent Top reviews