RT @AstronomyNow: Britain’s pre-Stonehenge megaliths were aligned by astronomers astronomynow.com/2016/08/19/bri… https://t.co/G3FoII9ntn
RT @AstronomyNow: Britain’s pre-Stonehenge megaliths were aligned by astronomers astronomynow.com/2016/08/19/bri… https://t.co/G3FoII9ntn