SciFriday: Gilgal Refaim and the Link Between Heaven and Hell

We share our impressions of the megalithic site Gilgal Refaim, which we visited during our recent tour of Israel, and what scholars have learned after fifty years of studying a site that’s bigger, hundreds of years older, and contains thousands of tons more rock, than Stonehenge.   Also: The upcoming Taurid meteor shower and its connection to the Tunguska Event.