Even from space, you wouldn’t detect something important about Earth’s shape: It’s not perfectly round. It’s actually a ...

We have all admired the stunning images of Earth from space. But when we are standing in a park or gazing out of a window, ...

To witness these spectacular displays, check an astronomical calendar for upcoming meteor showers visible from your location.

The discovery of an 11th-century Islamic astrolabe in Verona, Italy, has captivated historians and scientists alike. With ...

Sixteenth century Danish astronomer Tycho Brahe laid the framework for modern cosmology without ever using a telescope.

A map of the night sky created by the ancient Greek astronomer Hipparchus was recently discovered at St. Catherine Monastery ...

Alexander the Great is one of the legendary conquerors of ancient history who sparked the imagination of generations of ...

Written by the former chief historian of NASA, the book examines the evolution of our cosmic understanding—from early civilizations to the present day ...

From the heart of Mesopotamia to the heights of the Roman Empire, ancient civilizations have left an indelible mark on the ...