Compared to a lot of ground-based telescopes Hubble is a bit on the small side. Its dimensions are 43.5ft (13.2m) in length, has a maximum diameter of 14ft (4.2m) and weighs in at around the 11-tonne mark (to give a little context a standard route master bus is 27.5ft or 8.4m in length). Although what it lacks in size it more than makes up for in price, as it cost the cool $1.5 billion at launch.
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