The world record attempt to make the highest manned balloon flight has been called off, due to a rupture in the balloon's seam.
Andy Elson and Colin Prescot had been hoping to take their balloon, QinetiQ 1, 25 miles (40 km) into the sky to break a record that has stood for 40 years.
What happened to the balloon is unclear but tests will be conducted to find the source of the fault.
It is possible that that mission could take place next year. Click on the headings above to find out about how it might work.