NASA asteroid WARNING: Asteroid bigger than BIG BEN on ‘Close Earth Approach’ TODAY A GIANT asteroid bigger than Big Ben’s clock tower will zip past the planet on a so-called Close Earth Approach, NASA has warned. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:When does Cassini crash into Saturn? Everything you need to know about Cassini death diveCassini LIVE stream: Watch NASA grand finale live stream of Cassini death dive to SaturnCassini’s Grand Finale at Saturn: What to ExpectFloating Tar, Dead Fish: Oil Spill Threatens Greek BeachesMaurice Bluestein, Who Modernized the Wind Chill Index, Dies at 76Cassini dies today: Scientists pay tribute to spacecraft that went where no one had before