The Earth, moving in its orbit around the Sun and spinning on its axis, appears to make a closed, unchanging, elliptical orbit. If we look to a high-enough precision, however, we’ll find that our planet is actually spiraling away from the Sun. (LARRY MCNISH, RASC CALGARY)

Earth Is Drifting Away From The Sun, And So Are All The Planets

The reason why is simple, and should apply to every solar system like our own.

On January 3rd, 2019, Earth reached the point in its orbit where it’s at its closest approach to the Sun: perihelion. Every object orbiting a single mass (like our Sun) makes an ellipse, containing a point of closest approach…