The sun's distance from Earth changes throughout the year but ... "But also the sizes, shapes, velocities and rotation speeds of the objects themselves." On Earth, perihelion and aphelion at ...
The sun, Earth and the moon are aligned ... Of the moon, we always see a hemisphere and a little more because its rotation is synchronous and blocked by the tide. This means that one lunar ...
The study of Earth rotation and polar motion is crucial for understanding various geophysical phenomena and for applications in navigation, satellite positioning, and climate science. Recent ...