Ellie Cook is a Newsweek security and defense reporter based in London, U.K. Her work focuses largely on the Russia-Ukraine war, the U.S. military, weapons systems and emerging technology.

The one-of-a-kind, upgraded Block 20 Phasa-35 solar-powered aircraft is heading across the Atlantic for its next round of Pentagon-backed tests, and its developers say it could be the key to ...

Designed by BAE Systems’ subsidiary Prismatic Ltd, PHASA-35 represents a pivotal step in the evolution of aviation electronics and unmanned aerial technologies. BAE Systems began collaborating ...

Engineers from the UK have made significant progress in using the stratosphere for surveillance and communication purposes with the completion of a series of trials with the PHASA-35, an uncrewed ...

In a sky-high, 24-hour test flight, BAE System successfully sent its High Altitude Pseudo Satellite (HAPS) Uncrewed Aerial System (UAS) PHASA-35 solar-powered drone into the stratosphere ...

LONDON--(BUSINESS WIRE)--British engineers have successfully completed a stratospheric flight trial of BAE Systems’ High Altitude Pseudo Satellite (HAPS) Uncrewed Aerial System (UAS ...

British engineers have successfully completed a stratospheric flight trial of BAE Systems’ (Farnborough, U.K.) high altitude pseudo satellite (HAPS) uncrewed aerial system (UAS), PHASA-35. The trial ...

Up, up, and away: Successful stratospheric flight trial of PHASA-35. British engineers have successfully completed a stratospheric flight trial of BAE Systems’ High Altitude Pseudo Satellite Uncrewed ...

PHASA-35, built by British company BAE Systems, is a 150kg solar-electric aircraft that can quietly cruise through the stratosphere for months at a time. Named after its 35-metre wingspan ...

British engineers have successfully completed a stratospheric flight trial of BAE Systems’ High Altitude Pseudo Satellite (HAPS) Uncrewed Aerial System (UAS) – PHASA-35. Over a 24-hour period ...