Today on Space Radio:

Let’s count all the light!,

How hot was the cosmic microwave background?,

Do gravitational waves travel at the speed of light?,

How do we understand cosmological redshift?,

What is our duty as scientists to fight fringe reports?,

and more!

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Produced by Greg Moebius at WCBE Radio Columbus.

Hosted by Paul M. Sutter, astrophysicist at The Ohio State University, Chief Scientist at COSI Science Center, and the one and only Agent to the Stars.