Posted: June 11, 2025 | Last updated: June 13, 2025 Photoshop CS6 tutorial showing how to make a colorful nebula and celestial sphere in deep space.

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

This flying tourbillon with a 'mysterious' design is housed in a gold case, where its cage is seemingly suspended by a hidden ...

To understand how the “wobble” of the 26,000-year-precession cycle has no noticeable effect on the Sun’s rise and set points, imagine the celestial sphere of stars that surrounds us.

Despite how different they are today, astronomy and astrology share the same ancient roots. Both were strongly driven by a need to understand the movements of objects in Earth's celestial sphere.

NASA is funding a project at the University of Utah that brings real-time visualizations of satellites for use by researchers, planetariums and educators.

By imagining Earth at the center of a celestial sphere, he used a coordinate system similar to latitude and longitude, which had recently been devised, to measure the precise positions of the stars.

The statue is 2.1 meters tall, and the sphere held by the Titan has a diameter of 65 centimeters. Apart from being the oldest sculpture of Atlas found to date, the work is significant because it shows ...

The giant celestial sphere that he holds measures 21 feet in diameter. The Atlas sculpture was a collaboration between Lee Lawrie and Rene Paul Chambellan.

From Earth, the night sky looks fairly static. Sure, the stars rotate from evening to evening, and the planets move among them. But from a terrestrial perspective, the celestial sphere appears ...