Stratospheric Drones At 70,000 Feet May Be Cheaper Alternative to Satellites

Key Takeaway: Stratospheric drones, which developers see as capable of handling satellites’ telecom jobs, still require lighter batteries, more efficient solar cells and tougher structures. The race is on to be the first to establish a long-term flying electronic platform, up to 70,000 feet above the earth’s surface, where it can generate enough solar power […]