Catalyst: Closer look at asteroid Bennu

“Catalyst” follows the OSIRIS-REX satellite that travelled 2 million kilometers to catch up with asteroid Bennu and photograph its surface, all in preparation for an eventual landing and return mission. Experts at NASA’s Jet Propulsion Lab and ASU’s Meteorite Museum explain how Bennu could help astrophysicists defend Earth from asteroid impacts.

Also in this episode:

Catalyst: ELL teaching programs

In this segment:

Steve Chesley, NASA JPL Planetary Defense
Philip Christensen, ASU School Of Earth and Space Exploration
Meenakshi Wadhwa, School of Earth and Space Exploration

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Return to the world of 'Father Brown'

The charming Father Brown returns to solve more mysteries in the sleepy Cotswold village of Kembleford. The new season starts Saturday, Sept. 14, at 7 p.m. on Arizona PBS.

Swedish crime thriller 'Modus' comes to Arizona PBS

Ex-FBI profiler Inger Johanne Vik is drawn into investigating a series of brutal murders in Stockholm after her daughter becomes an unwitting witness to a murder.

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

On Saturday nights at 8 p.m., Detective Jack Mooney of "Death in Paradise" is really starting to get to know the people and places of Saint Marie – to a degree that surprises some of his colleagues.