In a handful of primaries on Tuesday, Democrats showed strong voter enthusiasm even in states where they hold little political power. Several key races now shift toward November.

NPR's Ailsa Chang talks with Shannon Curry, principal investigator on NASA's MAVEN mission, about the spacecraft's decade of observations of Mars.

Inflation has surged to its highest level in more than three years since the U.S. and Israel launched their war on Iran, triggering a surge in gasoline prices.

A popular (and generous) repayment plan ends, two new plans begin and many borrowers will see new loan limits.

Nearly a week after election day, Xavier Becerra, former Secretary of Health and Human Services, will face Republican Steve Hilton in the California's race for governor.

The GOP bill signed by President Trump provides roughly $70 billion for immigration enforcement, even as Democrats warn that Congress has ceded its oversight role with the legislation.

North Korea's Kim Jong Un rebalances ties between China and Russia, and gets fresh pledges of support from Beijing, while keeping his nuclear weapons off the agenda.

Monday night, President Trump spoke optimistically about negotiations to end the war with Iran. Now, he has confirmed that Iran shot down a U.S. Army Apache helicopter, saying the U.S. must respond.

For years, President Trump slammed former President Obama's nuclear deal with Iran. Now he has to push through his own.

In Nigeria, a film revolution is unfolding — not in cinemas, but on YouTube.