In cultures around the world, myths about “seven sisters” describe a cluster of stars, but today the naked eye can only discern six stars. What’s up with that?

Cultures around the world call the Pleiades constellation ‘seven sisters’, even though we can only see six stars today. But things looked quite different 100,000 years ago.

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How come the Australian Aboriginal stories are so similar to the Greek ones? Anthropologists used to think Europeans might have brought the Greek story to Australia, where it was adapted by Aboriginal people for their own purposes. But the Aboriginal stories seem to be much, much older than European contact. And there was little contact between most Australian Aboriginal cultures and the rest of the world for at least 50,000 years. So why do they share the same stories?

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All modern humans are descended from people who lived in Africa before they began their long migrations to the far corners of the globe about 100,000 years ago. Could these stories of the seven sisters be so old? Did all humans carry these stories with them as they travelled to Australia, Europe, and Asia? —The Conversation