Regina G. Barber is a co-host of Short Wave, NPR's science podcast. Barber completed her PhD in physics at Washington State University with a focus in astrophysics, studying globular cluster systems.

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Hi SPY NINJAS! What is that fog coming out of PZ9's mask? How can we get PZ9 to remember he doesn't like Project Zorgo?

More than 800 kilometres long, the Via Appia is the oldest and most important of the great roads built by the Ancient Romans. Constructed and developed from 312 BCE to the 4th century CE, it was ...