Catalyst: NASA satellite images of our solar system

The latest generation of NASA satellites during its Lucy Mission captures new visions of Earth and fascinating objects in our solar system.

In this segment:

Don Johanson, PhD

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'America's Test Kitchen' counts down most popular recipes for 20th anniversary

To celebrate 20 years of the most-watched cooking show on public television, "America's Test Kitchen" fans around the country voted for their all-time favorite recipes from the series. The results are presented now as Bridget Lancaster, Julia Collin Davison and their fellow cast members count down the series’ 20 most popular recipes and look back on the show's best moments.

'Nature' explores the wild on Wednesday nights

From the remarkable octopus to a river of dreams, experience compelling stories of the natural world as "Nature" returns to Arizona PBS Wednesday nights at 7 p.m.

'Frontline' examines controversial newsmakers

Investigate news and newsmakers Tuesday nights on Arizona PBS. Tonight: See how the state governments and Wall Street led America’s public pensions into a $4 trillion hole.