Google revealed top-secret plans yesterday to send balloons to the edge of space with the lofty aim of bringing Internet to the two-thirds of the global population currently without Web access.
Scientists from the technology giant released up to 30 helium-filled test balloons flying 20km above Christchurch in New Zealand yesterday, carrying antennae linked to ground base stations.
While still in the early stages, “Project Loon” hopes eventually to launch thousands of balloons to provide Internet to remote parts of the world, allowing the more than four billion people with no access to get online.
It could also be used to help after natural disasters, when existing communication infrastructure is affected.
“Project Loon is an experimental technology for balloon-powered Internet access,” the company said from its secretive Google X lab, “where we work on radical, sci-fi-sounding technology solutions to solve really big world problems.”
“Balloons, carried by the wind at altitudes twice as high as commercial planes, can beam Internet access to the ground at speeds similar to today’s 3G networks or faster,” it added.
“It is very early days, but we think a ring of balloons, flying around the globe on the stratospheric winds, might be a way to provide affordable Internet access to rural, remote and under-served areas down on Earth below, or help after disasters, when existing communication infrastructure is affected,” Google said.
It works by ground stations connecting to the local Internet infrastructure and beaming signals to the balloons, which are self-powered by solar panels.
The balloons, which once in the stratosphere will be twice as high as commercial airliners and barely visible to the naked eye, are then able to communicate with each other, forming a mesh network in the sky.
Users below have an Internet antenna that they attach to the side of their house, which can send and receive data signals from the balloons passing overhead.
About 50 people were chosen to take part in the trial and were able to link to the Internet.
Google’s ultimate goal is to have a ring of balloons — each the length of a small light aircraft when fully inflated — circling the Earth, ensuring there is no part of the globe that cannot access the Web.
“The idea may sound a bit crazy — and that’s part of the reason we’re calling it Project Loon — but there’s solid science behind it,” Google said, but added: “This is still highly experimental technology and we have a long way to go.”
Project leader Mike Cassidy told reporters that if successful, the technology might allow countries to leapfrog the expense of installing fiber-optic cable.