Silo Season 1 felt like the platonic ideal of a sci-fi show — a standalone pilot, seamless worldbuilding, powerhouse performances, and a gravely serious tone even when characters used silly sci-fi terms like “The Before Times.” However, it only really covered half of Wool, the first book in the Silo trilogy.

Rebecca Ferguson’s Juliette, a lowly mechanic-turned-sheriff-turned-martyr, was sent out of the underground bunker where she had grown up to clean the camera the silo residents use to view the wasteland above. While every other resident sent to clean this camera collapsed and died after only a few steps, Juliette replaced the faulty heat tape used to seal her suit, meaning she could make it over the hill to see the truth: that there are countless other silos.

Now, in Season 2, the story branches off into two plotlines as Juliette explores what’s going on in the other silo, and the silo she left copes with the news that someone survived the first moments of a Cleaning. It’s a more ambitious effort, but Season 2 manages to seamlessly pivot its focus and grow its scope organically.

This week’s news that archaeologists have discovered the long-lost city of Valeriana highlights one major part of Maya society: astronomical observatories.

More than 6,000 structures unveiled themselves to a team of archaeologists who looked through a 2013 ecological survey of Campeche, Mexico. This part of the Yucatán Peninsula is north of a highway where there’s been very little investigation until recently. Among the revelations is a special place of ceremony and Sun-watching.