The astrolabe was a revolutionary tool for calculating celestial positions and local time. The device's design dates back to Islamic antiquity.

An unmanned Chinese probe will be exploring the moon's far side in 2018. The side that faces away from the earth differs significantly from the familiar face of the moon. So why are the two sides so different?

In the far off constellation of Hydra; two neutron stars collided, producing vast clouds of gold and other heavy elements. What's a neutron star anyway?

Robert H. Goddard is acknowledged by many as the "father" of rocketry, but it's a strange paternity since he had so little influence on his contemporaries.

On August 21, 2017, North America’s first total solar eclipse in a while will cross the center of the United States from East to West.

People have been planning for this month's total solar eclipse for years. They aren't the first to do so: the Victorians pioneered eclipse tourism.

Astronomers have worked out that Jupiter's Great Red Spot is a massive storm system, but what keeps a storm going for hundreds of years?

NASA engineers have 3-D printed a new version of chain mail. Why strong, light, heat-resistant materials are so important in space.

In recent years, astronomers have broadened their search for habitable planets to include previously ignored stars like M-dwarves.

Every school child will recognize a photo of Saturn. The squash-colored planet is orbited by distinctive rings, easily visible ...