Revised figures issued by the Office for National Statistics show that the UK is £490 billion poorer than previously thought.
The number of slaves reported in the UK has trebled in the last six years.
Offshore wind turbines have an average of 4.3 tonnes of mussels clinging to each of their legs.
A new kind of concrete developed in Canada can be sprayed onto existent buildings to make them resistant to earthquakes.
In the wake of Hurricanes Harvey and Irma, US insurance companies have received damage claims for around 360,000 vehicles.
Big Ben could have continued to chime outside working hours, in the evenings and at weekends, but the parliamentary authorities refused to pay overtime.