This Drone ‘Breathes’ Air To Propel Itself and Has Unlimited Range

With the rapid rate that drone technology is advancing, we shouldn’t be surprised when increasingly complex UAVs hit the scene with fanfare. But the Phoenix, a new drone out of the United Kingdom, is a marvel—and could have major military implications. At 49 feet long and 34 feet wide, the Phoenix looks like a small flying bomb with (relatively) tiny wings covered by solar panels, which makes it plenty imposing on the outside. But it also uses a “variable-buoyancy propulsion system” to move through the air.