The American space agency NASA has announced it is looking to break the record for the longest ever balloon flight.
NASA announced that they will launch the balloon not from Cape Canaveral, in the US but from Wanaka.
The balloon will be launched next month from Wanaka airport.
A similar flight a year ago had to be terminated after 32 days because of a leak.
The current record is 54 days.
The football-stadium-sized balloon, made from eight hectares of polyethylene film, will float nearly constantly at a high of about 33 kms, carrying scientific instruments, tracking and communications equipment weighing just over a tonne.