2007-05-17 10:39:02 · 16 answers · asked by gee 1 in Science & Mathematics ➔ Astronomy & Space
The sun is moving at an estimated 70,000 miles an hour...the earth is tied to it by it's enormous gravitational pull.
2007-05-17 10:43:08 · answer #1 · answered by Anonymous · 6⤊ 2⤋
The sun dosn't stay where it is. It's on a journey through space like everything else. It's all relevent really, you see the sun is the biggest body in our system therefore it's gravitational pull is greatest so everything else in our system orbits the sun. If you happen to have another body close by that's bigger than you, then you'll orbit that also as our moon orbits us. So if you like, we are one of the suns moons if you see what I mean. I can't remember what makes the earth go round but it'll be something to do with gravity as well I'm sure.
2007-05-17 10:56:36 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The sun isn't standing still. It (and the entire solar system) is spiraling inwards towards the centre of the Milky Way galaxy. The Earth, like all planets and moons, doesn't exactly follow an orbit around the sun. It is always trying to escape and is actually moving at a perpetual tangent to its orbital path. It is the gravitational pull of the sun that drags it back in.
2007-05-17 10:53:41 · answer #3 · answered by Jellicoe 4 · 0⤊ 0⤋
It doesn't. Take a very large aggregation of gas and dust about 10B years ago. The particles are moving randomly as gravity causes the cloud to collapse. Eventually due to the relative escape velocities of the larger aggregates the bigger bits (planets) get entrained and start orbiting in the same direction. Due to gravitational pull the centre becomes a hot incandescent sphere (the sun) with approx ten larger bodies varying in density and composition travelling around it. This process is repeated on a galactic scale with our star making a complete orbit every 200,000 years, as do our local group of galaxies around their own centres. Further out beyond the great galactic wall all the galactic systems are receding from each other at speeds determined by the Hubble constant as space expands from the big bang.
2007-05-17 13:29:52 · answer #4 · answered by RTF 3 · 0⤊ 0⤋
Ah but, the Sun doesn't stay where it is. It is moving very very very fast. It's not only turning on its own axis but it in turn is orbiting round the centre of the galazy with us in tow.
The reason we go round the Sun is down to its gravity. We are in freefall really but the Sun's gravity is constantly pulling us and everything else in the solar system towards it.
2007-05-17 21:43:20 · answer #5 · answered by elflaeda 7 · 0⤊ 0⤋
The sun has an orbit as well. Orbitting the milky way. The sun's gravity makes the earth spin. Easy fourth grade science.
2007-05-17 14:29:15 · answer #6 · answered by Danny Pham 2 · 0⤊ 0⤋
Gravity. We are like a huge magnet. The earth rotates on an axis, or an amaginary one. The sun has tramendous gravity that keeps all of the planets in orbit. The sun is a star. All stars have magnetic feilds, but there isn't another star for millions of miles. That is why we are in a solar system. I like to think of itlike God made everything sooo perfect that the sun wouldn't move even if it didn't have gravitational pulls.
2007-05-17 10:46:56 · answer #7 · answered by Anonymous · 0⤊ 2⤋
The sun is actually moving in it's own orbit. It's just too large for us to comprehend. And it's the force of gravity that keeps us not only orbiting the sun, but rotating on our own axis. How we started to rotate is anyone's guess.
2007-05-17 10:50:43 · answer #8 · answered by Aaron B 1 · 0⤊ 0⤋
the sun does move. everything in the universe is moving. THe gravitational pull of the center of our galaxy stops the sun just spinning off into space, and the gravitational pull of the sun stops the planets just spinning into space.
2007-05-17 20:47:27 · answer #9 · answered by Kit Fang 7 · 0⤊ 0⤋
gravity from the sun pulls earth around it
2007-05-17 11:27:39 · answer #10 · answered by zain 10 1 · 0⤊ 0⤋