Science and technology news today spans security, energy, resources and loss. Australia and Canada have struck a A$2.5 billion deal to bring Australian over-the-horizon radar technology to the Canadian Arctic, a major surveillance investment aimed at extending early warning coverage across the far north and reinforcing NORAD-era defenses. In energy, Hong Kong-based NOVVA Group says it will acquire a Colombian solar portfolio from Germany’s ABO Energy, underscoring continued international interest in Latin America’s renewable buildout even as deal details remain sparse. In Western Australia, Gateway Mining reported a promising high-grade gold hit at its Cowza discovery in the Yandal belt, sharpening attention on a 4.5-kilometre untested corridor that could connect two finds. Beyond industry, the day also carried tributes: mourners in Beirut honored conservationist Mona Khalil, who died after being wounded in an Israeli strike, while Cuba marked the death of revolutionary veteran Ramiro Valdés at 94.