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In this segment:

Jeremy Duda, Maria Polletta, Howard Fischer

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159 science documentaries you can watch right now (no membership required)

Nova Wonders "What's the Universe Made Of"

Is your brain is in desperate need of something enriching? Good news. We’ve got you covered. Below is a list of 161 of the best science documentaries and web series out there. All of these shows are available to watch right now without a membership.

'Nova' delivers stories from the front lines of science

"Nova" explores new discoveries and how we have come this far on Wednesdays at 8 p.m. on Arizona PBS.

PBS KIDS Family Night: 'Molly of Denali' mini-marathon

This week's feature is a "Molly of Denali" mini-marathon. Join Molly, an Alaska Native girl, her dog Suki, and friends Tooey and Trini on their adventures in beautiful Alaska.