Asteroid warning: Space rock the size of the Great Pyramid of Giza to skim Earth NASA has been tracking an asteroid the size of Great Pyramid of Giza which is travelling at 29,000mph. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:2016 Likely to Top 2015 as Hottest Year on Record, Scientists SayQ&A: A Cold and Flu Risk That’s a Real Eye-Opener2016 Expected to Be Hottest Year on RecordNew Zealand earthquakes PREDICTED in supermoon prophecyA Trip to ‘Mars’ Signals a New Look for National Geographic ChannelSupermoon WARNING: Moon could wipe out coasts with huge tidal waves and EARTHQUAKES