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 ...

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.

Just about everything in our solar system has been captured by the sun’s gravity, which also has a heavy hand in ordering the movements of all those objects. Most comets are thought to originate ...