NBC September 1, 2016 2:46 pm Watch: SpaceX Rocket Explodes on Launch Pad During Test A massive explosion erupted Sept. 1, 2016, at SpaceX’s main launch pad, destroying a rocket as well as a satellite that Facebook was counting on to spread internet service in Africa. US & World Videos 2:39 Bruins try not to ‘dwell on the past' ahead of Game 7 against Toronto Maple Leafs 20:50 Karen Read trial: How accounts of first responders have differed 2:43 ‘On the Dot' to redevelop stretch of Dorchester Avenue 1:49 Finalists in math competition hope their model helps ease housing crisis 14:31 @Issue extra: Seth Moulton on pro-Palestinian protests, TikTok and more