After the last season was cut short due to budget constraints, "House of the Dragon" is back with a bang for Season 3. At the world premiere in London, the cast of the "Game of Thrones" prequel series gives CNN a taste of what to expect.

Nearly 1 in 5 adolescents and young adults have used AI chatbots for advice or help when they felt upset, nervous or anxious, according to a new study published in JAMA Pediatrics. https://cnn.it/3Sy9iXQ

The man who killed a top Minnesota Democratic lawmaker and her husband pleads guilty to federal charges. Prosecutors won't seek the death penalty. https://cnn.it/4vg9dXe

As Corporate America scrambles to fill artificial intelligence jobs, people looking to get their foot in the door of the industry are getting left behind. New research, shared first with CNN, finds that employment opportunities in the hottest part of the economy are often reserved for those with deep experience, not beginners. https://cnn.it/4ojMHud

Multiple floors of the Pentagon are locked down and being evacuated due to a "hazardous materials incident," sources and local fire department say https://cnn.it/3QAWgbx

Ryanair, Europe's biggest airline, is under investigation by the UK's competition watchdog over charges it imposes on families with young children to sit together. https://cnn.it/4e3eqMc

El Niño has officially begun, and it is forecast to intensify into a very strong or "Super" El Niño with major shifts in global weather patterns and an even hotter climate, according to a new report released Thursday morning from the National Oceanic and Atmospheric Administration. https://cnn.it/4e4Tvsa Download the CNN Weather app on IOS for in-depth analysis.

All over the US, the rising economic impact of driving and flying is diminishing summer travel plans and forcing consumers to stay closer to home. https://cnn.it/4ebXQs9