The earth positioned on an arm of the milky way galaxy is moving at an average speed of 515, 000 miles per hour or approximately 143 miles per second. Even at that speed, it takes 240 million years to complete one revolution around  the milky way.  

 The Planet Earth

The earth rotates every twenty four hours and orbits the sun every 365 days. The earth spins at a speed of 1037 miles per hour at the equator.  While orbiting around the sun at 67,000 miles per hour or 18.6 miles per second, the earth within the solar system travels 584 million miles per year. 


 
 

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