© 2026 Connecticut Public

FCC Public Inspection Files:
WEDH · WEDN · WEDW · WEDY
WEDW-FM · WNPR · WPKT · WRLI-FM
Public Files Contact · ATSC 3.0 FAQ
Play Live Radio
Next Up:
0:00
0:00
0:00 0:00
Available On Air Stations

Mars Used to Be Blue... Then Something Happened

Season 13 Episode 12 | 11m 08s

Why is the Martian sky red by day… but blue at sunset? And how did it used to look more like Earth? The strange story of Mars’ skies can reveal a lot about the Red Planet's past, and the surprising ways it is more like Earth than you may know.

Aired: 10/22/25
Extras
Explore the life and legacy of notable Black scholar and civil rights pioneer W.E.B. Du Bois.
Nature’s rhythms; from fireflies flashing to cicadas emerging after years underground.
Fireflies are a captivating phenomenon to witness on the prairie.
From beavers in wetlands to crayfish in streams, aquatic systems shape the prairies.
Wildlife are here for one reason: lunch!
Follow the Artemis mission to bring humanity back to the Moon for the first time since Apollo.
Geoffrey surprises Sister Veronica with an unexpected visit — and an offer she can't refuse.
Sister Catherine speaks with Sister Julienne about her concerns for Sister Veronica.
Charlie and Isabella face many challenges with their Wilding Project.
Often overlooked, tallgrass prairies are among the most biodiverse ecosystems on Earth.
Latest Episodes
All
  • All
  • Be Smart Season 13
  • Be Smart Season 12
  • Be Smart Season 11
  • Be Smart Season 10
  • Be Smart Season 9
  • Be Smart Season 8
  • Be Smart Season 7
  • Be Smart Season 6
  • Be Smart Season 5
  • Be Smart Season 4
  • Be Smart Season 3
  • Be Smart Season 2
  • Be Smart Season 1
How thousands of tiny brains, obeying simple rules, solve problems no individual can understand.
Joe visits a flavor lab to uncover how our senses shape our taste.
Here is the REAL science about "alpha males."
How did the mass extinction of the dinosaurs play out, moment by moment?
Think traits like eye color or tongue-rolling are simple genetics? Think again.
Is autism really on the rise—or are we just recognizing it more?
Seedless fruits are delicious, convenient… and completely unnatural.
What does randomness really mean? And why your digital life depend on it?
Why do we have different blood types? And why do we have blood at all?
How did dinosaurs become birds—and what good is half a wing?