What is gravity in relation to space and time?
Gravity is the force that all mass exerts on other masses, manifesting as a bend in the space-time continuum, as per Special Relativity. Think of space-time as a sheet, pulled taught. Place a weight on the center of the sheet, it pulls the surface of the sheet down with it. Now imagine shooting a marble across the sheet, off to one side of the sheet, not aimed at the center. This marble, on a sheet without a weight, would make it’s own small indent, but it’s course would be straight. On the sheet with the weight, the surface that the marble is rolling on is curved toward the weight, so the marble’s course would be altered toward that, from our perspective. From the marble’s perspective, it is still traveling in a straight line. It’s velocity is in a straight line, and the space it travels in is what’s curved. Now, imagine if the weight is really dense, it takes up less space on the sheet, but pulls it down further. Imagine if the weight was so dense, it ripped the sheet, now there is a
