Plans have been unveiled for a new hub-airport in the Thames estuary, to the east of London, to tackle growing airport capacity problems.
Last year the government set up the UK Airports Commission to look at options for expansion in southern England. Since then bosses at Stansted, Gatwick and Heathrow have expressed their desire to build more runways.
Now, designs for a massive floating airport are in the spotlight. But if it goes ahead, would Stansted miss out? Our Political Correspondent Emma Hutchinson reports.