NASA asteroid WARNING: Asteroid big enough to WIPE OUT London headed for Earth AN ASTEROID potentially big enough to flatten an area the size of London is headed for a Close Earth Approach, NASA warned. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:For India, Toilets Are a (Mostly) Serious IssueTHIS is how humanity will be killed off, according to Nobel Prize winnersBackyard Chickens Carry a Hidden Risk: SalmonellaYellowstone Volcano: Record earthquake levels at supervolcano sparking fears it will BLOWNorth Korea Says It Has a Hydrogen Bomb. Here’s What That Means.A Giant Nuclear Blast, but a Hydrogen Bomb? Too Soon to Say