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New Research May Hint at Its Ancient Origins</title><link>https://www.smithsonianmag.com/smart-news/scientists-still-dont-know-how-or-when-the-grand-canyon-formed-new-research-may-hint-at-its-ancient-origins-180988570/</link><description>Researchers say the ancestral Colorado River formed an ancient lake in northern Arizona roughly 6.6 million years ago, which spilled out westward onto the landscape that would eventually become the Grand Canyon</description><pubDate>Fri, 17 Apr 2026 19:11:08 +0000</pubDate><guid>https://www.smithsonianmag.com/smart-news/scientists-still-dont-know-how-or-when-the-grand-canyon-formed-new-research-may-hint-at-its-ancient-origins-180988570/</guid><enclosure length="2787127" type="image/jpeg" url="https://th-thumbnailer.cdn-si-edu.com/wH2TdauR8zGJyuqx_yH0GEl7Jxg=/420x240/filters:focal(1500x1279:1501x1280)/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer_public/b9/ba/b9ba262b-52e7-4aa7-ac9b-a7dd749d5a9a/47006412314_a98ecd3fa3_o.jpg"/></item><item><title>Chimps Seem to Love Crystals. Their Attraction Might Help Explain Humans' Obsession With the Shimmering Stones</title><link>https://www.smithsonianmag.com/smart-news/chimps-seem-to-love-crystals-their-attraction-might-help-explain-humans-obsession-with-the-shimmering-stones-180988303/</link><description>Hominins have been collecting calcite and quartz for at least 780,000 years. 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Fruity, With a Hint of Leather</title><link>https://www.smithsonianmag.com/smart-news/what-does-this-150-year-old-bottle-of-mystery-booze-taste-like-fruity-with-hint-leather-180988268/</link><description>Experts in Utah recently sipped the murky liquid, which was found during excavations at a historic ski area</description><pubDate>Fri, 27 Feb 2026 12:30:00 +0000</pubDate><guid>https://www.smithsonianmag.com/smart-news/what-does-this-150-year-old-bottle-of-mystery-booze-taste-like-fruity-with-hint-leather-180988268/</guid><enclosure length="8693907" type="image/jpeg" url="https://th-thumbnailer.cdn-si-edu.com/wisk6D8ZmXtRjUOOOCh7G-39xN4=/420x240/filters:focal(3765x3048:3766x3049)/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer_public/cb/12/cb121ec8-303d-4520-8116-d442c118c586/copy_of_alta_utah_p19_1.jpg"/></item><item><title>These Archaeologists Set Out in Search of Animal Fat. 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