TODAY MARKS five years since SciFriday debuted on SkyWatchTV! We celebrate by showing that first effort and discussing why Sharon is now literally half (but also twice) her former self. Also: New research suggests that
Archaeologists have been investigating some mysterious, huge piles of rock overlooking the Valley of Rephaim near Jerusalem. They’ve been tentatively dated to about the time of Isaiah and Hezekiah, but that’s just a guess.