A major proxy advisory firm is siding with an activist investor in its tug-of-war with Air Products (ADP) over the industrial gas company's future.

Beyond Aero has raised $20 million in funding for its hydrogen-powered business jet, called One, that it plans to launch in ...

HRH-302 honeycomb core material, currently under evaluation for use around the UAV’s high-temperature exhaust nozzle, could ...

Hermeus has brought a test facility online to conduct trials of supersonic and hypersonic engine capabilities.