This week on Looking Up we are 'shielded' from ignorance about the constellation Scutum, thanks to Bruce Bookout. The night sky contains many odd objects besides the menagerie of strange creatures.

What it tells us about the past: This tall, semi-cylindrical shield, which is in the collection of the Yale University Art Gallery, is one of the few surviving examples of a Roman "scutum," the most ...

From stone carvings to iron helmets, a new blockbuster exhibition at the British Museum, "Legion: Life in the Roman Army," explores what it was like to be a soldier serving in one of the most elite ...