Skypersonic Validates Drone Technology on Mt. Etna for Future Use on Mars by DRONELIFE Staff Writer Ian M Crosby Skypersonic is a subsidiary of Red Cat Holdings. Red Cat Holdings [NASDAQ:RCAT] is held in the AdvisorShares Drone Technology ETF [NYSE ARCA:UAV], the only ETF dedicated to the drone economy. The AdvisorShares Drone Technology ETF is a thematic investment … [Read more...] about Drones on Mars: Skypersonic Tests Technology on Sicily’s Mt. Etna, Piloted from Houston