I was always amazed with how the gravity provides a round planet to have objects stay on the ground regardless if the planet is upside down or rightside up. I am also amazed on how the Sun's gravity keeps our planet in the perfect position to promote life. My question is: So what is creating the gravity to keep us on the planet? Is it from the Earth? If it's from the Earth, is it caused by the radiation from the Earth's core? I was always curious about how gravity works.
P.S. mags, did you get the answer you wanted, or do you want a more specific ansewr? I'm not trying to be snide, so forgive me if it comes across that way.
All objects with mass have gravity even if you were floating in space next to a rock each of you would have a graviational pull on the other. That pull would be super super minor for just you but the earth is many times bigger so the graviational force is many times stronger. Objects become spheres since a shere has the largest volume for the smallest surface area. All the items on earth are pulled towards the middle of the earths core so natuarlly they form into the most compact shape which is a sphere.
