The “Cantino Planisphere,” completed in 1502, is the second known chart to have depicted the New World. It included unpublished information on Portuguese trade routes and the ongoing discovery ...

The small planisphere was my treasure. By turning the top wheel around and aligning the date and time scales on the base and the top, you could see which stars and constellations would be visible ...

It includes 52 “complications,” including a 400-year perpetual calendar, tide clock, solar and lunar eclipse prediction, a planisphere to show the constellations, and even a thermometer.

We tapped chocolate pros and taste-tested several picks to find the best chocolate gifts in 2024, including festive holiday ...

Guided by a planisphere, an ancient tool used by maritime explorers to navigate by the stars, diners will embark on a ...

In addition, there’s a field school for beginning astronomers. Crater study, celestial mechanics and astrolabe, planisphere, ...