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NPR's Lakshmi Singh talks to Tommy Caldwell, the first to free climb a 3,000 foot "Dawn Wall" granite cliff, about his book The Push: A Climber's Journey of Endurance, Risk and Going Beyond Limits.

After eight years in office, his list of accomplishments is as long as it is controversial.

According to the AP, voters have decided not to recall California Democratic Gov. Gavin Newsom. He will remain the leader of the country's most populous state until at least 2023.

The world's largest trees are adapted to wildfires. But with fires getting more extreme, scientists warn that giant sequoias are running out of time.

NPR's Mary Louise Kelly talks with Pentagon correspondent Tom Bowman and Fred Kagan of the Critical Threats Project at the American Enterprise Institute about U.S. intelligence in the war in Ukraine.

Preventive care, like screening colonoscopies, is supposed to be free of charge to patients under the Affordable Care Act. But some hospitals haven't gotten the memo.

The family history of SARS-CoV-2 is not what virologists expected — and it sheds light on the coronavirus that launched a pandemic. Check out our illustration of the virus's family tree.

Scientists are beginning to come up with answers to the question of how long antibodies from an infection can protect you — and what they'll protect you from.

Historically, the U.S. had been the top donor for global health. That changed dramatically this year. We look at the new approach the U.S. is pursuing and what this has meant for people on the ground.

Kim Hyun-woo used to work for North Korea's top intelligence agency. He defected to South Korea in 2014 and is now on his first-ever visit to the United States.