Anonymous

it does not. this would be impossible. Earth simply moves in an ellipse around the Sun

Anonymous

forward? Could you explain what you mean by 'forward'?

Anonymous

In physics, an orbit is the gravitationally curved trajectory of an object,[1] such as the trajectory of a planet around a star or a natural satellite around a planet. Normally, orbit refers to a regularly repeating trajectory, although it may also refer to a non-repeating trajectory. To a close approximation, planets and satellites follow elliptic orbits, with the central mass being orbited at a focal point of the ellipse,[2] as described by Kepler's laws of planetary motion. Current understanding of the mechanics of orbital motion is based on Albert Einstein's general theory of relativity, which accounts for gravity as due to curvature of spacetime, with orbits following geodesics. For ease of calculation, in most situations, orbital motion is adequately approximated by Newtonian mechanics, which explains gravity as a force obeying an inverse square law.[3] -------------------- You're a special kind of stupid.

Anonymous

It does not, it is orbiting the Sun in one direction, like the other planets.

Anonymous

Maybe you come from Mars or a moon of Jupiter and are witnessing the optical illusion of retrograde motion as you look back at Planet Earth? This is how it works: "Since Earth completes its orbit in a shorter period of time than the planets outside its orbit, it periodically overtakes them, like a faster car on a multi-lane highway. When this occurs, the planet being passed will first appear to stop its eastward drift, and then drift back toward the west. Then, as Earth swings past the planet in its orbit, it appears to resume its normal motion west to east. Inner planets Venus and Mercury appear to move in retrograde in a similar mechanism, but as they can never be in opposition to the Sun as seen from Earth"

Anonymous

I think you have been spending too much time on Venus. The Earth exhibits 'retrograde' motion when viewed from Venus when coming close to opposition. Cheers.

Anonymous

It doesn't. Earth moves in an elliptical orbit around the sun always in the same direction.

Anonymous

That does not happen. The Earth orbits the Sun in one direction. Who gave you the idea that the Earth changes direction? Whoever it was, he/she is totally wrong.

Anonymous

It doesn't. Why do you think it does?

Anonymous

The Earth's direction is continually changing directions, due to the acceleration of the Sun's gravity. Take the sun away - and we'd move in a straight line. With the sun, our trajectory is curved into the year-long orbit we're so familiar with.