Citizen finds ancient white dwarf star

A volunteer with the NASA-led Backyard Worlds: Project 9 project found the oldest and coldest known white dwarf star. It’s an Earth-size star remnant that has rings of dust and debris. This star was discovered by Melina Thévenot of Germany using the Backyard Worlds project. We hear more about this discovery from Adam Schneider, a research scientist at Arizona State University’s School of Earth and Space Exploration.

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Adam Schneider, a research scientist at Arizona State University’s School of Earth and Space Exploration

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Celebrate America's servicemen and servicewomen with a 30th anniversary Memorial Day concert

Celebrate both our brave men and women who fought - and fight - for America as we celebrate the 30th birthday of the National Memorial Day Concert on Sunday, May 26, at 7 p.m. (with a replay at 8:30 p.m.).

'Breakthrough' unravels the history of transcendent ideas

Take a mind-blowing journey through human history using six iconic objects that we often take for granted in "Breakthrough: The Ideas That Changed the World" each Wednesday at 9:30 p.m.

COMING JUNE 2: 'Downton Abbey Returns!'

In anticipation of the September 2019 premiere of the "Downton Abbey," feature film, enjoy a nostalgic celebration of all aspects of the most successful British drama in television history — a stellar cast, superb writing, spectacular locations and dazzling costumes — in a two-hour special presentation coming June 2 at 4 p.m. on Arizona PBS.