Symmetry detection can improve various machine learning tasks.

OpenAI says the latest version of its text-to-video artificial intelligence (AI) tool Sora was downloaded over a million times in less than five days - hitting the milestone faster than ChatGPT did at launch. The app, which has topped the Apple App Store charts in the US, generates ten second long realistic-looking videos from simple text prompts. The figures were announced in an X post from Sora boss Bill Peebles, who said the surging growth came even though the app was only available to people in North America who had received an invite. The Sora app - which makes it easy for users to post videos they have created to social media - has resulted in a deluge of videos on social feeds. Some have included depictions of deceased celebrities such as musicians Michael Jackson and Tupac Shakur.

Since the inception of our planet, the meteorological environment, as reflected through spatio-temporal data, has always been a fundamental factor influencing human life, socio-economic progress, and ecological conservation.

Overnight Russian missile and drone strikes have caused power cuts in large parts of Ukraine's capital, Kyiv. Nine people were injured while residents in eastern districts were plunged into darkness and faced disruption to water supplies, the city's mayor Vitali Klitschko said. Meanwhile, a seven-year-old child was killed in a separate Russian drone strike in the Zaporizhzhia area in the country's south-east, according to the Ukrainian regional head. Moscow has escalated attacks on energy facilities over recent weeks, while Ukrainian President Volodymyr Zelensky has accused Russia of attempting to create chaos and apply psychological pressure. Ukraine's Energy Minister Svitlana Hrynchuk said Russia was inflicting a massive strike on facilities around the country overnight on Thursday, adding that repair crews were working to restore power.

A new challenger has appeared. In the fiercely competitive world of video games, it's common for new contenders to fade away as quickly as they burst on to the scene. But Battlefield 6 is hoping to change that. It's the latest entry in a long-running military shooter series often framed as a grittier, more realistic answer to Call of Duty. The title's never quite managed to match its most famous rival in terms of sales or players, but there are signs the new installment could close the gap.

This technology is our future threat, warns Serhiy Beskrestnov, who has just got his hands on a newly intercepted Russian drone. It was no ordinary drone either, he discovered. Assisted by artificial intelligence, this unmanned aerial vehicle can find and attack targets on its own. Beskrestnov has examined numerous drones in his role as Ukrainian defence forces consultant. Unlike other models, it didn't send or receive any signals, so could not be jammed.