Help decide which of the six challenges put forward by the Longitude Committee should become the £10 million Longitude Prize 2014. The vote is open until 25 June. Cast your vote now.
The six challenges are:
How does the prize work?
The vote takes place between 22 May and 25 June, and will be held by the BBC on its Horizon website and by text.
The winning challenge will be announced on 25 June and will become the focus of the £10 million prize fund.
The Longitude Committee will then finalise the criteria for how to win the prize, and from September you will be able to submit your idea to win it.
The Longitude Prize will run for five years, or until the prize is won.
For further information see the Longitude Prize 2014 webpage here
For further information about Nesta see the webpage here.