Harvard professor warns of apocalypse threat BIGGER than NASA's feared asteroid impact THE HEAD of NASA has urgently come out to warn of the apocalyptic danger of an impending asteroid collision within decades - but one Harvard professor fears an even more impending threat. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Eclipse 2019: Is the January Super Blood Moon the LAST ECLIPSE until 2021?Cool Beans? Far From It: Global Warming Is Helping to Wipe Out Coffee in the WildNASA embraces bitcoin BLOCKCHAIN tech to battle aerospace cyber attacksTrilobites: Watch These Stink Bugs Hatch in UnisonEclipse 2019 path MAPPED: Track of lunar eclipse on Sunday hour by hour across EarthNew Diet Guidelines to Benefit People and the Planet: More Greens for All, Less Meat for Some