The Earth orbits the Sun at an average speed of approximately 67,000 miles per hour (107,000 kilometers per hour).

However, the Earth's speed isn't constant throughout its orbit. It's faster when it's closer to the Sun and slower when it's farther away.

Here's a breakdown:

* Perihelion: This is the point in Earth's orbit where it's closest to the Sun (around January 3rd). At perihelion, Earth's speed is about 67,000 mph.

* Aphelion: This is the point in Earth's orbit where it's farthest from the Sun (around July 4th). At aphelion, Earth's speed is about 66,000 mph.

So, while the average speed is close to 67,000 mph, it varies slightly throughout the year.