The largest spacecraft ever built, the ISS is also the world’s most expensive single object, costing upwards of 100 billion dollars, according to the Government Accountability Office.
The dimensions of the completed ISS research facility will be approximately 356 feet (109 meters) by 240 feet (73 meters), or slightly larger than a football field. When completed, the ISS will weigh around 450 tons (408,000 kg), or 450 times the weight of an average car.
