There are also relativistic effects that can cause particles to spiral inward toward the sun. Gravity is the force that governs the structure and motion of the solar system, keeping celestial ...

In turn, the Moon's gravity and orbital rotation pull Earth's waters along its path, resulting in the ocean's tides. On top ...

That's because the planet is about to get very, very hot. You see, the sun's tremendous gravity pulls the Earth right toward it. Meanwhile, the planet is trying to whiz away in this direction.