Good morning. It’s a busy Tuesday, with a surprise election result up north, a Nobel Prize that sounds like science fiction, and a Supreme Court term that opened with a big one. Here’s what’s worth your time.

The Top 10

1. Secessionist party wins Quebec election in Canada (Al Jazeera). The Parti Quebecois is back in power and promising another independence referendum, which hands Prime Minister Mark Carney a fresh unity headache.
2. Iran war updates: Battle for control of Red Sea, attacks on energy infrastructure (CBS News). Tankers keep getting hit and Saudi Aramco’s chief says refilling the world’s fuel stocks could take two years, so don’t expect cheap gas soon.
3. Supreme Court’s new term kicks off with blockbuster climate change case (NPR). The justices will decide if towns like Boulder can make oil giants pay for local climate damage, and the ruling could reach well beyond climate.
4. U.S. stocks hold near their records after oil prices swing lower (Pittsburgh Post-Gazette via AP). The Nasdaq set a new high even with Brent crude hovering around $100, a sign investors are betting the worst of the oil shock is priced in.
5. 2026 Nobel Prize in Medicine awarded for brain research tool called optogenetics (STAT). Three scientists won for a way to flip individual brain cells on and off with light, a tool that has reshaped how we study memory and mental illness.
6. New York state declares measles disaster amid resurgence of disease in US (Al Jazeera). It’s the first emergency declaration of this outbreak, and the US could lose its measles-free status when health officials meet in November.
7. OpenAI launches visual ads that appear alongside image generation results (TechCrunch). With ChatGPT now at 1.2 billion weekly users, ads are coming to the free experience, and that changes what the product is.
8. Trump names national intelligence chief Jay Clayton as new AI czar (NPR). Clayton will run a new White House “Super Intelligence Force,” which tells you how central AI has become to federal policy.
9. Trump officials pursue record number of cases to strip US citizenship (Al Jazeera). The biggest denaturalization push in memory raises real questions about how secure citizenship is for naturalized Americans.
10. California voters to decide on controversial one-time tax on billionaires (NPR). The measure has split Democrats and unions, and whatever happens could shape the wealth tax debate nationwide.

That’s the list. Click through to the original reporting for the full story, and we’ll see you tomorrow.