A HUGE chunk of the Earth’s crust is MISSING – and experts now know why A LARGE chunk of the Earth equivalent to a billion years of rock formation is missing from our planet’s crust, and scientists finally understand why. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:SpaceX video: Footage captures Elon Musk's reaction to incredible Falcon Heavy launchThe New Health Care: Heart Stents Are Useless for Most Stable Patients. They’re Still Widely Used.He Took a Drug to Prevent AIDS. Then He Couldn’t Get Disability Insurance.REVEALED: China’s ambitious plans to build bridge over Asia’s BERMUDA TRIANGLEGoogle Makes Its Special A.I. Chips Available to OthersQ&A: Feline Foodies