The high-altitude pseudo satellite vehicle (HAPS)

Facts for Prelims (FFP)   Source: IE  Context: The National Aerospace Laboratories (NAL) in Bengaluru has successfully conducted the first test of a solar-powered “pseudo satellite” called HAPS (High-Altitude Pseudo Satellite), a new type of unmanned aerial vehicle (UAV). HAPS can fly at altitudes of 18-20 km, remain airborne for months or even years, and …