 Weighing in at 376 kilograms and costing £ 75 million, SMART-1 was one of the smallest and cheapest space missions.
<clarity>  Weighing in at 376 kilograms and costing £ 75 million, SMART-1 was one of the smallest and cheapest space missions.
 Weighing in at 376 kilograms and costing 75 million, SMART-1 was one of the smallest and cheapest space missions.