In August, Sceye will launch a 200-foot-long solar-powered craft into the stratosphere above Japan to test high-altitude internet delivery using its custom antenna for better 5G coverage.
- Sceye’s helium-filled craft will supplement Softbank’s 5G from 18 km altitude.
- The solar-powered platform stays aloft using stored energy for continuous operation.
- High-altitude platforms aim to improve coverage and energy efficiency compared to satellites.
What happened
Sceye, a New Mexico–based company, is preparing to launch a unique solar-powered, helium-filled platform measuring roughly 200 feet long. It will fly from the southwestern US to the coast of Japan, where it will operate approximately 18 kilometers above the ocean in the stratosphere. The platform is designed to beam data directly to devices, supplementing Softbank’s 5G network in a test that starts in August.
This craft is part of a broader class known as high-altitude platform stations (HAPS), which use planes, balloons, or specialized airships equipped with solar panels to deliver connectivity. Sceye’s platform has already demonstrated its ability to stay aloft for extended periods, including a recent flight lasting 12 days, where it maintained a stable position for over 88 hours above Brazil’s coast.
Why it matters
Operating in the stratosphere offers several advantages over traditional satellite services. The proximity to Earth reduces the energy required to transmit data, making communication more efficient. At the same time, HAPS can cover large geographic areas, providing a valuable solution for connecting sparsely populated or disaster-stricken regions where terrestrial infrastructure is limited or damaged.
Sceye’s solar-powered platform demonstrates how airborne technology can replicate some benefits of space-based systems without the high costs, complexity, and delays associated with satellite launches and orbits. This innovation could enhance mobile networks, improve disaster response communications, and ultimately shift how operators extend their coverage in the future.
What to watch next
Key developments to monitor include the outcome of the upcoming test above Japan and how well the platform supports and integrates with Softbank’s 5G network. Success in this trial could incentivize partnerships with other carriers and satellite operators seeking complementary infrastructure to serve urban centers and remote areas more efficiently.
Additionally, advancements in solar energy storage, materials, and autonomous flight control will be critical for the scalability and commercial viability of HAPS. Continued improvements could make such platforms common fixtures in global telecom networks, possibly revolutionizing how wireless connectivity is delivered worldwide.