Ancient Tombs May Have Doubled As Telescopes

Ancient astronomers may have used tombs to probe the heavens.

New research suggests that prehistoric humans may have relied on long dark chambers in igloo-shaped structures known as ‘passage graves’ to see the rising stars. The extended narrow entrances of the graves, which are scattered across Europe, may have amplified a viewer’s night vision, allowing them to detect stars rising at twilight sooner than they would otherwise be able to.

“By using these passage graves, the observer wou

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