World
Yemen's Iran-aligned Houthi rebels attacked oil facilities and utility sites across southern Saudi Arabia early Tuesday, wounding at least 73 people, including women and children, and forcing some energy operations to stop. Saudi-led coalition spokesman Maj. Gen. Turki al-Malki called the strikes a serious escalation and promised retaliation. The assault came hours after the Houthis blamed Saudi Arabia for an airstrike on a prison in Yemen's Jawf province that killed at least seven people. The flare-up has ended a four-year truce in Yemen's civil war. The World Health Organization says at least 194 people have been killed and more than 880 wounded since August 23, and the United Nations reports more than 21,000 people newly displaced.
Associated Press
Politics
Lonnie Bunch III, the 14th secretary of the Smithsonian Institution, will step down by the end of the year, he announced Tuesday. Bunch, 73, is the first Black person and the first historian to lead the world's largest museum organization. His departure follows months of mounting pressure from the Trump administration, including an executive order seeking the removal of what it called improper ideology and an August 28 letter warning that federal agencies may stop working with the Smithsonian unless its leadership changes. Bunch, who has worked at the Smithsonian for 38 years, said the decision was his own and not tied to that pressure. Senator Alex Padilla said Congress must defend the institution's independence.
CBS News
Business
Canada's counter-tariffs on American goods took effect at 12:01 a.m. on September 8, covering more than 700 US products worth about US$19.9 billion. Ottawa set rates of 15, 25 and 50 percent to match, dollar for dollar, the tariffs Washington placed on Canadian goods under Section 338 and Section 232 of US trade law. The move responds to a 50 percent US levy on about CA$20 billion of Canadian exports. Prime Minister Mark Carney said retaliation was unavoidable, while US Trade Representative Jamieson Greer said no new talks are planned. The measures hit US steel, dairy, electronics and other sectors, and end the arrangement that had exempted most cross-border trade from tariffs.
Reuters
Technology
French artificial intelligence company Mistral has raised 3 billion euros in a Series D round, valuing it at more than 21 billion euros and marking the largest equity round ever completed by a European technology company. Samsung Electronics led the round together with the EQT-managed Scaleup Europe Fund and existing investor PSG Equity as co-leads, with Advent International and BlackRock funds among the participants. The raise gives Europe a bigger financial base in the global AI race, where American firms such as OpenAI and Anthropic have attracted most investor money so far. Mistral is known for models that can run on a range of hardware and for keeping an open approach to some of its technology.
Bloomberg
Science
Astronomers using the Hubble Space Telescope have found a giant ten-sided storm, or decagon, taking shape around Saturn's south pole. The roughly 104,000-mile-wide jet pattern is a geometric twin to the famous six-sided hexagon that has circled Saturn's north pole for more than 40 years, and it is the first large regular-sided jet ever seen in the planet's southern hemisphere. The feature appears to have formed between 2017 and 2023, while Saturn's south pole was tilted out of view from Earth. Hubble images from August 2025 show the storm still evolving. The discovery, based on the telescope's OPAL program data, is reported in the journal Science Advances.
ESA Hubble
Sports
A string of matches finishing after 2 a.m. at this year's US Open has players and fans pushing back against the tournament's late-night schedule. Alexander Zverev finished a first-round match in the early morning to rows of empty seats, then told reporters everyone was tired and wanted to go to sleep. Venus Williams' first-round loss to Sofia Kenin at Arthur Ashe Stadium also ended beyond 2 a.m., with few spectators left to watch what may have been her final singles match. Top-ranked Aryna Sabalenka said late finishes shift players' entire schedules and can mess up their recovery. The debate has already led Wimbledon and the US Open to raise prize money and create a players' advisory council.
Associated Press
Health
Higher blood levels of tyrosine, an amino acid widely sold in supplements marketed for focus and brain performance, are linked to a shorter lifespan in men, according to a new analysis of more than 270,000 participants in the UK Biobank. Genetic estimates suggest men with higher tyrosine levels may lose close to a year of life expectancy, the researchers reported in the journal Aging-US. No such link was found in women, who tend to have lower tyrosine levels than men. The study looked at naturally occurring tyrosine in the blood and did not test supplements directly, so the authors say people should not stop eating protein-rich foods, which are the main dietary source of the amino acid.
ScienceDaily
Environment
A new federal report warns Canadians to prepare for decades of more severe wildfires, extreme heat, rising seas, thawing permafrost and shrinking water supplies as the country warms. The second edition of Canada's Changing Climate Report says average warming could reach up to 5 degrees Celsius by 2100 under current global policies, and it confirms with greater confidence that burning fossil fuels is driving the change. The summary was released days after flash floods swamped streets in Toronto, events that climate advocates linked to warming. The report says deeper emissions cuts would limit future warming, but adaptation will be needed no matter what, since some impacts are now locked in.
CBC News