Google's Project Loon can now launch 20 wireless internet delivery balloons a day, claiming that they can remain in the air for 10 times longer than they could last year.
The success is down to an automatic filling mechanism for inflating the balloons, which require the same amount of air as 7,000 party balloons.
The mechanism can inflate the balloons in five minutes, significantly speeding up the launch process.
Google said that it has made several changes over the past year that have refined the manufacturing process and allowed the creation of longer lasting balloons.
The balloons can now fly for 100 days longer than they could in 2013, and the record stands at 130 days. The company recently put Project Loon in action over Australia to deliver internet connectivity in hard to reach areas.
Google said that the balloons have travelled three million kilometres since the project began in 2013, the equivalent of flying to the moon and back four times.
Project Loon is designed to deliver wireless internet services to areas of the world where connectivity is limited or non-existent.
Google faced the challenge of manoeuvring the balloons at stratospheric heights. This involved thousands of trajectory simulations to get a balloon near its target destination.
"One flight came within 1.5km of our target destination over a flight of 9,000km, purely through predicting and sailing with the stratospheric winds," Google said in a Google+ post.
Project Loon is part of Google X, the research and development division that looks to push the boundaries of existing and cutting-edge technology.
One of its other projects involves using drones to deliver packages to remote farms in the Australian outback.
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