@Philip_Britton Tweet 20/02/2013 07:27 PM Tweet 20/02/2013 07:27 PM Posted by Bolton School on 20 Feb 2013 Modified by Bolton School on 16 Sep 2023 @Philip_Britton RT @PhysicsNews: Incredible details are emerging about Russia’s Chelyabinsk meteor bit.ly/YzrQAu (via @io9)