Ready for the oldest story in the world? Up in the December night sky, the Pleiades cluster, also known as the 'seven sisters,' often leaves us counting only six stars. So, where's the seventh? It's a cosmic mystery wrapped in tales from around the globe.

In Greek mythology, these stars were Atlas' seven daughters, transformed to escape Orion, the celestial hunter, with one sister vanishing due to mortal love.  Meanwhile, in Aboriginal Australian lore, the Pleiades are young girls with stories woven into sacred ceremonies and winter's dawn.

Despite geographical isolation, these star stories might have journeyed with humans out of Africa over 100,000 years ago. As for the Pleiades themselves, they've served as a celestial clock for farmers and sailors, signalling planting seasons and safe voyages.