When we think of navigation, we imagine satellite imagery mapping our world with laser-point precision.  But not all maps are for navigating reality.  

"World building” describes the mapping of entire fictional realms. Think the vast continent of Middle Earth in Lord of the Rings, or the expansive galaxies of Star Trek. 

But it doesn’t end there. It can extend to complex political systems, ancient histories, and even functional languages.  

This week, we’re bringing you stories about how these worlds are fabricated—and what they can teach us about our own.  

It’s the second episode of Sci-Fi, a series envisioning alternative futures and imaginary realms. These stories were produced for the Science Gallery’s new exhibition — Sci-Fi: Mythologies Transformed, which is open now. 

Featuring stories by Finley Monaghan-McGrath, Matthew Yammouni Jagoda Ziolkowska, Madeline Barrett, and Disha Mehta.