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There are a lot of lessons to be learned from the time the world came together to plug the hole in the ozone layer.

Before scientists were even sure black holes existed, an Indian astrophysicist did the math behind Einstein's predictions of what would happen if two black holes collided.

Kim's comments come just days ahead of President-elect Joe Biden's inauguration. Biden has promised "principled diplomacy" with North Korea, implying a break with Trump's high-stakes summits.

Researchers found census records showing the entrepreneur and philanthropist owned slaves as late as 1850, contrary to the long-held belief that his family freed all slaves when he was a boy.

NPR's Ari Shapiro talks with retired Lt. Gen. Stephen Twitty about what retired Gen. Lloyd Austin's nomination as defense secretary means for diversity within the Pentagon.

The sample collected by the spacecraft Hayabusa2 caps a six-year mission to Ryugu. Researchers hope it will offer clues to "the secrets of the birth of the solar system and the birth of life."

Thomas Kahikina Ching of Kailua Kona, Hawaii, lost his jobs because of the pandemic and decided to grow his own food. He explains how he went from DJ and tour guide to backyard farmer.

School districts across the country are looking for ways to fill the gaps from distance learning. The superintendent of Virginia's Richmond Public Schools has a plan that could be approved this month.

The historic negotiations represent the first direct talks between the long-warring sides. However, leaders warn that reaching a peace deal could take time.

The son of country music legends Johnny Cash and June Carter has compiled a book of Southern recipes handed down in his family through the years.