Oldest Known Astrolabe Recovered

An astrolabe was a navigation device that sailors used to guide them through the seas by looking at the position of the stars in the sky.

Recently, a group of explorers have found the oldest known astrolabe so far. It was recovered from the wreck of Esmeralda, one of the ships in Vasco da Gama’s armada.

(Image credit: David Mearns/University of Warwick)

Source: neatorama