In a cave on the Italian side of the Slovenian border, one layer of earth holds the remains of the first farmers. The layer right below it belongs to the hunters who lived there before them. The cave is called Tina Jama. It opens near the summit of Mount Lanaro/Volnik, in the municipality of Sgonico/Zgonik, […]

For more than three centuries, astronomers asking whether the Solar System is stable have received ever more comforting answers. Isaac Newton was not so sure. He suspected that the mutual tugs between Jupiter and Saturn would eventually wreck the planetary order, and that only divine intervention could prevent it. By the late 1700s, Laplace and […]