The Chinese balloon shot down by the US military earlier this year was full of

GRAPEVINE, Texas--(BUSINESS WIRE)--Jun 5, 2023--

Nvidia has joined the exclusive club of companies with a $1 trillion market capitalization as the chipmaker benefits from the growing use of artificial intelligence

The world’s oceans were the warmest on record in April and May, a development that could mean more

Twitter has asked a federal court to terminate a 2022 privacy settlement with the Federal Trade Commission that is the subject of an ongoing FTC investigation, alleging that the probe has "spiraled out of control and become tainted by bias."

A South Korean battery maker tapped by the US to help it catch China in the clean-car market

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It feels like every time black holes are discussed and studied by the scientific community, there are new findings that blow our tiny minds. It’s been revealed that black holes actually regurgitate or “burp up” the stars that they eat years after the event. Experts made the discovery by studying tidal disruption events (TDEs). These events take place when stars are close enough to supermassive black holes, to be destroyed by the process of spaghettification. Studying these moments over a number of years after the black holes seemingly swallowing stars with no trace, the experts found that up to 50 per cent of them "burp up" the remains. Yvette Cendes is a research associate at the Havard and Smithsonian Center for Astrophysics and head author on the study. Speaking to Live Science, she said: "If you look years later, a very, very large fraction of these black holes that don’t have radio emission at these early times will actually suddenly 'turn on' in radio waves. "I call it a 'burp' because we’re having some sort of delay where this material is not coming out of the accretion disk until much later than people were anticipating." The material was re-emitted between two and six years from 10 out of 24 black holes which were studied by Cendes and the team. It has the potential to change the way the scientific community thinks about black holes. "There was a second peak, the two black holes re-brightened, and that's completely new and unexpected," Cendes said. "People were thinking that you'd have one outflow, and then it's kind of done. So this observation means these black holes can 'turn on' and then 'turn on' again." Meanwhile, a low intergalactic grumbling is emanating from deep space, according to scientists – and again, it’s black holes that are providing us with new discoveries. Astronomers say they detected the first-of-their-kind low frequency ripples, described as a “cosmic bass note” of gravitational waves, which is thought to be caused by supermassive black holes merging across the universe. Sign up for our free Indy100 weekly newsletter Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings

China’s largest battery maker for electric vehicles has launched an aviation division in preparation to begin mass production of electric planes, according to reports. Contemporary Amperex Technology (CATL), which supplies batteries for Tesla, claims to have achieved the “holy grail” energy density required for commercial electric aircraft of 500 Watt-hours per kilogram (Wh/kg). The company announced the feat at the Auto Shanghai trade fair earlier this year, with chief scientist Wu Kai claiming that it was poised to begin production of a commercially viable battery for electric aircraft. “With an energy density of up to 500Wh/kg, it can achieve a high energy density and a high level of safety at the same time in a creative manner, opening up a brand-new electrification scenario of passenger aircrafts,” the company said in a statement at the time. “CATL can achieve mass production of condensed battery for electric vehicles in a short period of time.” CATL has now launched a joint venture with state-owned plane manufacturer Commercial Aircraft Corporation of China (COMAC), Yicai Global reported, following four years of research into the technology. The advent of electric aircraft has become a realistic prospect in recent years following several major battery breakthroughs that have the potential to overcome cost and capacity limitations. Israel-based startup Eviation completed the first flight of an electric commuter plane last year, taking off from an airport in Washington before touching down eight minutes later. The Alice aircraft is capable of transporting nine passengers and their luggage, or a tonne of cargo, and has been hailed as the first battery-powered plane viable for short-haul commercial journeys of up to 645km (400 miles). Regional airlines and logistics firms in the US have already ordered more than 200 Alice planes, with Eviation aiming to fulfil the orders by 2026. The Independent has contacted CATL for a production timeframe of its electric plane batteries. Read More Battery breakthroughs are about to trigger a transport revolution

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