On Monday, an early-morning glance up at the sky showed this unusual sight. It’s a balloon designed to fly at an altitude between 70,000 and 90,000 feet. The balloon, which is about 400-feet tall, is part of Project Aether, which seeks to demonstrate the stratospheric communication capabilities of unmanned balloons.

The balloon was launched from the airport in Waimea and in the photos was at an altitude of around 5,000 feet, but climbing steady. I followed it’s progress on Flightradar24 and later it had drifted out over the ocean and reached 78,000 feet. The next day, it disappeared. Not sure if that’s because its tracking failed or because something else happened to it.

The intention was for it to fly across the ocean and the U.S. mainland before being retrieved on the east coast. A second balloon was supposed to be launched a couple of days after this one, but I haven’t seen any sign of it yet, though that might simply be down to unsuitable weather conditions.

More information can be found here.