The French facility Thales Alena Space is building two reduced-scale Stratobus airships as high-altitude long-range carriers.   Propulsion power ...

In US, Skydweller has completed an autonomous 22.5 hour flight.

In New Zealand, Kea Aerospace flew its solar-powered Atmos Mk1 HAPS (High Altitude Pseudo Satellite) UAV

In US, AeroVironment has flown an upgraded Sunglider solar-powered uncrewed 1.5 kW aircraft termed the Horus A,capable of carrying a 150 lb payload

In Japan, development is underway into a solar-powered high-altitude platform station (HAPS) intended for maritime domain awareness missions. Payload ...

In Australia, Ocius has designed the Bluebottle, a solar-powered unmanned vessel that can roam the seas and check for illegal fishing or people smuggl...

In US, NASA has developed an expanding tubular-boom system comprising flexible polymer and carbon fibre materialsthat unravel after launch deploying 8...

In US, researchers at Johns Hopkins University have devised a solar sail that can control the direction of the protons bouncing off it by means of an ...