What If the Earth Was Flat?

Solar Problems

Then there's the sun. In the scientifically supported model of the solar system, the Earth revolves around the sun because the latter is much more massive and has more gravity. However, the Earth doesn't fall into the sun because it is traveling in an orbit. In other words, the sun's gravity isn't acting alone. The planet is also traveling in a direction perpendicular to the star's gravitational tug; if it were possible to switch off that gravity, the Earth would shoot away in a straight line and hightail it out of the solar system. Instead, the linear momentum and the sun's gravity combine, resulting in a circular orbit around the sun.