Earth along with all the planets just sit in one place revolving around the...

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Delroy L

New member
...sun, will they ever shift? I am amaze and wonder, what keeps the sun and all the planets resolving around it? I understand if the earth tilt just a small degree, all the land on earth will cover with water. Then what keeps them in orbit and not to shift negatively.
 
Inertia keeps things from changing motion. So due to this they will change direction of motion as little as possible (orbit in same path).
 
they don't sit in one palce, they follow roughly the same trajectory. However, not perfectly, the earth is slowly moving towards the sun each year.

ANd if the tilt changed by one degree, all land would not be covered up, there isn't enough water to do that.
 
The planets don't sit in one place - they all move around the sun in elliptical orbits.

I don't know what you mean by "if the earth tilt just a small degree, all the land on earth will cover with water. Then what keeps them in orbit and not to shift negatively" - none of that makes any sense.

The planets orbit the sun due to the sun's gravity pulling them towards the sun and their motion pulling them away from the sun - each planet is balanced so that it keeps moving around the sun in a stable orbit.

All the planets are tilted by some amount to the sun so they all move in slightly different planes around the sun.

If you mean that if the Earth's distance from the sun changed a little the ice would melt - then no, that's not true. The Earth's orbit is not a perfect circle - the Earth is 5 million kilometers closer to the sun at its closest approach than at its farthest.
 
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