The moon's ascending node (the point in the sky where its orbit crosses the ecliptic from south to north) is moving westward ...

The sun's changing declination is what determines whether the sun's rays strike us at a low angle or more directly. Declination on a celestial globe is analogous to latitude on a terrestrial globe.

With the right preparations and technological solutions in place, aviation would continue to operate safely, even during a ...

This image shows magnetic declination, or the angle between magnetic and geographic north, according to the World Magnetic Model released in 2025. Red is magnetic north to the east of geographic ...

The popular belief that European astronomy from the late Middle Ages and early Modern Age was more advanced than that of ...

One of Kurt Angle's most infamous nicknames IS "Perc Angle," which started during his time with TNA Wrestling. Angle recently shared his thoughts about being called by that name and clarified ...

Your navigation system just got a critical update, one that happens periodically because Earth’s magnetic north pole keeps moving. Here’s what to know.