Science is always an unfinished project. That’s what makes it so much fun. The process—collecting data, building models to explain how the world works, and then dethroning them with new models—is full ...

Before Johannes Kepler’s Third Law, the motions of the planets around the Sun were a mystery. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

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The project uses flashing LEDs to represent the planets in order to simulate the mechanically scanned planetary motion known as the Orton Orrery. The Orrery is based on a single PIC16F627 ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

For centuries, astronomers have sought to understand the complex dance of planetary motion. The ancient belief that planets followed perfect circular orbits aligns intriguingly with modern theories of ...

A new analysis of chaos in the solar system reveals how planetary collisions are avoided over billions of years. When you purchase through links on our site, we may earn an affiliate commission.

Retrograde mean motion resonances occur when orbiting bodies, moving in directions opposite to the dominant sense of motion, experience periodic gravitational interactions that can stabilise their ...

When it’s necessary to convert motion from rotary to linear, engineers usually use ball or leadscrews. But planetary roller screws, such as those from INA, a brand of the Schaeffler Group USA, Fort ...