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A growing body of research on dinosaurs' closest living relatives suggests the method that's been used to estimate how old a dinosaur was when it died may be leading paleontologists astray.

The State Department has denied NPR's diplomatic correspondent Michele Kelemen permission to fly with Secretary of State Mike Pompeo on a trip to Ukraine. NPR is protesting that decision in a letter.

Legal centers across the country are preparing immigrants without legal status for various scenarios as the Trump administration ramps up enforcement operations. We visited one in California.

Widespread protests across Cuba have revealed political challenges President Biden faces as he seeks to support the demonstrations without hurting their cause — or his own political interest.

NPR's Ari Shapiro talks with Corinne Fleischer, the World Food Programme's Middle East, North Africa and Eastern Europe regional director, about what grain shipments from Ukraine means for some areas.

Scientists have developed an experimental way to study how human embryos implant in a uterus, which may provide new insights into why miscarriages occur and how they can be prevented.

NPR's Ailsa Chang speaks with Senator Gary Peters, D-Mich., chair of the Homeland Security Committee, about the findings of their investigation into the failures of the Secret Service on July 13.

NPR's Mary Louise Kelly speaks with U.S. Ambassador to NATO Julianne Smith about how the U.S. can support both Israel and Ukraine.

Romi Gonen, 23, was wounded and taken hostage during the Oct. 7 Hamas-led attack. Her sister Yarden and other relatives are awaiting word if Romi will be released as part of a negotiated hostage deal.

NPR's Steve Inskeep talks with Stephen Walt of the Harvard Kennedy School about President Biden's steadfast support for Israel and its political implications.