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Scientists have recently mapped the painted lady butterfly's annual flight from equatorial Africa to northern Europe and back, the world's longest butterfly migration. In Constant Bloom, photographer Lucas Foglia documents the journey.

Meta's Mark Zuckerberg announced Facebook and Instagram would drop fact-checking. NPR talks with Steven Brill of NewsGuard, where journalists rate the reliability of news sources, about the move.

On Tuesday, scientists held an event organized by House Democrats in which they stood in front of posters outlining their work — and the federal cuts that now threaten it.

It's the world's biggest coral reef system, home to some 400 types of coral. In the past 18 months, rising ocean temperatures helped cause the single greatest loss of coral ever recorded there.

U.S. Secretary of State Marco Rubio delivers a keynote speech at the annual Munich Security Conference; European stakeholders are reassured but still wary.

Following the Democratic National Convention, NPR's Michel Martin speaks with three young delegates — Jae Moyer, Richard Dorman and Zenaida Huerta — about the future of the party.

Heated rhetoric continues to define Russia-Ukraine relations. A class-action lawsuit filed against the NFL and three teams alleges racism in hiring practices. Crude oil prices reach seven-year highs.

A famed desert landscape has reemerged as water levels in Lake Powell reservoir have fallen to record lows. It's raising questions about the future of this oasis and water in the American West.

When McKinsey Comes to Town authors Walt Bogdanich and Michael Forsythe say the consulting firm helped companies boost tobacco and opioid sales — while at the same time working for the FDA.

The Western drought and shrinking Colorado River basin threaten operations at the region's coal plants. With a looming risk of blackouts, it's unclear who is overseeing this threat on the ground.