Want ice with that?

I'm sure science geeks everywhere have been captivated by the recent ESA achievement of placing a spacecraft (Rosetta) in orbit around comet Churyumov-Gerasimenko at a distance of over 350 million kilometres from Earth. The early photographs of the object against the black featureless backdrop of space make it look small but in reality this object is massive, roughly 2 miles across and weighing approximately 10,000,000,000,000 Kg it would make a pretty impressive splash if it ever hit our planet.

For a better sense of scale someone has created the above picture showing what this comet would look like against the backdrop of the city of Los Angeles, now that's a big lump of ice!