What are the 10 biggest news stories from today?

I wasn't able to find one single authoritative "top 10" ranked list for today, but pulling together the most significant stories being reported across major outlets right now, here's a roundup of today's biggest news:

1. Zelenskyy alleges Russian assassination plots
President Volodymyr Zelenskyy sat down for an exclusive interview with CBS News about what he said were recent Russian plots to assassinate him. He also discussed President Trump's new demand that Ukraine stop attacking Russian energy targets to help gas prices in the U.S.

2. FBI says it thwarted a mass-casualty attack
The FBI said it thwarted a "mass casualty attack," inspired by ISIS, allegedly by a 21-year-old man in Pennsylvania.

3. Russian strikes continue on Kyiv
Ukraine's Kyiv Mayor Vitali Klitschko said Russian strikes hit a petrol station and warehouse facilities in Kyiv early in the morning, injuring one person at the petrol station.

4. Saudi oil pipeline damage causing weeks-long outage
Regional officials said the East-West Saudi oil pipeline will be mostly out of service for weeks as damage is repaired, with repairs expected to take three to five weeks.

5. Space arms tensions escalate
Air Force Secretary Troy Meink said the United States "has on-orbit space control weapons capable of defending the joint force against hostile adversary action," while China warned against an "arms race" in space.

6. Russia-Denmark tensions in the Baltic
Russia's ambassador to Denmark accused Danish helicopters of making dangerous manoeuvres near its warships in the Baltic Sea, handing an official note to Denmark complaining about the incidents.

7. Kennedy Center closure vote
The John F. Kennedy Center's board is moving toward closing the center as early as today, voting on a resolution to close the main building for extensive renovation expected to take at least two years, while deciding how to reinstall Trump's name on the building.

8. Middle East diplomacy over West Bank settlements
Portugal's Foreign Minister said Israeli settlement expansion and economic pressure in the occupied West Bank and East Jerusalem were undermining prospects of a viable Palestinian state.

9. AI safety debate intensifies in Washington
CNN reports ongoing coverage of Trump dismissing AI alarms as a "HOAX," which is reportedly worrying White House officials.

10. Music industry fallout over Macklemore/Ed Sheeran tour
The rapper Macklemore was bumped from Ed Sheeran's U.S. concert tour for pro-Palestinian comments that some say crossed a line into prejudice, and four additional supporting acts have since quit in solidarity.

Note: News coverage is constantly evolving, and different outlets may prioritize different stories. For the most current and complete picture, I'd recommend checking a live news source directly, as some of these developments may have updated since these reports were published.