Catalyst: Exploring exoplanets from Earth

How do you study the surface of a planet so far away no human will ever likely visit? You recreate that surface in a lab right here on earth.

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Season 8 of 'Death in Paradise' brings more quirky island mysteries

Saint Marie's favorite displaced detective is back for an eighth season of criminal mysteries and other craziness as detective inspector Jack Mooney is back for more "Death in Paradise" Saturday nights at 8 p.m. on Arizona PBS.

'Nova' delivers stories from the front lines of science on Wednesday nights

From Viking armies to space exploration, "Nova" explores our world on Wednesdays at 8 p.m. on Arizona PBS.

'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.