Flying High to Bring the Internet EverywhereToday, having internet access is almost as important as having clean water or electricity. The internet helps people access education, find healthcare and job information, and stay connected with others. However, about one-third of the world’s population still does not have internet access. This problem, called the internet divide, is especially severe in remote areas like mountains, deserts, or jungles, where infrastructure like communication towers is difficult to build and maintain. The lack of internet is not just about missing out on technology— it also means fewer opportunities. People without internet access often face poverty and inequality in a world that relies on being connected. During the COVID-19 pandemic, the importance of reliable internet became even clearer. Students in unconnected areas struggled to learn online, and many people could not access healthcare information or find jobs that they could do from home. What if we could bring reliable internet to even the most remote parts of the world, helping to close the internet divide? High-altitude platform stations (HAPS) are special systems that can operate in the stratosphere, about 20 km above the Earth— far above where airplanes fly. These systems can take the form of airships (large, balloon-like vehicles filled with gases lighter than air), or can look more like airplanes, with wings that help them glide through the air. Their high position gives them a big advantage— they can provide connectivity to large areas while avoiding tough terrain like rugged mountains, dense jungles, or vast deserts where it is hard to build infrastructure like cell towers. You might wonder why HAPS are better than satellites, which also provide communication from the sky. Satellites orbit much higher than HAPS— over 35,000 km above Earth. This distance causes a time delay, called latency, in communications. For example, you might have experienced latency as a delay during a video call. HAPS, at just 20 km above Earth, have much lower latency, providing faster and more reliable internet. They are also less expensive to set up and easier to upgrade than satellites. HAPS are adaptable, too. Powered by solar panels, they can stay in the air for months at a time without refueling. HAPS can be deployed quickly for emergencies, like restoring communication after a natural disaster or improving coverage during major events, such as large sports tournaments, music festivals, or international conferences. Advances in materials, solar technologies, and propulsion systems (the mechanisms that help HAPS move and stay in position) have made HAPS more efficient and ready for real-world use.
