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Health care workers in short supply are reusing N95 masks amid the pandemic. Peter Tsai, who developed its virus-blocking filter, is trying to find a disinfection method that doesn't degrade the mask.

Sam Nujoma, the freedom fighter who led Namibia to independence from apartheid South Africa in 1990 and served as its first president for 15 years, has died. He was 95.

Total annual compensation for OSU football coach Ryan Day will increase from $7.6 million to $9.5 million, putting Day among the nation's highest-paid college football coaches.

The Brooklyn-born Burgie studied at Juilliard and co-wrote many of the songs on Harry Belafonte's breakthrough album, Calypso, including his genre-defining hit, "Day-O (The Banana Boat Song)."

Explore the seedbed civilizations of Mesoamerica, the Middle East and the Indus Valley.

Get ready to head back to Amsterdam as Van der Valk returns for a second season!

Remarkable island wildlife reveals insights into our rapidly changing planet.

Now streaming on PBS Passport: an assortment of award-winning films from Independent Lens.

Kraft was among the earliest employees of NASA and designed mission control and other components of the program. He became head of the Johnson Space Center and oversaw the birth of the space shuttle.

Known primarily for his southern-flavored operas, Floyd helped create an American opera vernacular. His 1955 hit Susannah won the New York Music Critics Circle Award and helped launch his career.