The reason object move around space is inertia. Take the moon and Earth for example, gravity makes the moon stay close to the Earth, and inertia makes the moon circle (or revolve, or orbit) around the Earth in a circular motion. the path it takes is called its orbit.
gravity
Theoreticly, it gets weaker.
The rock will move at the same speed it was thrown forever until it hits something else or is affected by another objects gravity. in theory if it passes no large objects and hits nothing it may go on forever at the same speed
Aristotle divided the Universe into two spheres: one above the Moon and the second under it. This enabled him to explain why there is no problem to move objects on the ground and in the air whereas the stars are stable.
Briefly, redshift shows that most objects move away from us; this means that the Universe is expanding.
gravity
sun moon
Theory of gravity
there are 2 rock-like objects that move through space meteors which are like rocks and then there are comets whch are made from ice.
objects that move through space or matter up and down and have water in the matter
No and yes. All objects in space move, but the gravity of the sun and the planets slow down a spacecraft or other object if they get too close.
Solar system
Meteorites
Theoreticly, it gets weaker.
Solids are rigid and have no intermolecular space between them. that's why.
Because there is no air in space, there is no friction to slow said object down.
According to Einstein's theory of general relativity, objects with mass "bend" space-time, which is part of how gravity works. (Space-time is basically the combination of space at time, using time as a kind of "fourth dimension".) When objects move around, they change the way the space-time is curved around them. In some cases, when an object accelerates, the result changes in the curvature of space-time propagate outwards at the speed of light. The propagation of the changes in the curvature of space-time is what is known as gravitational waves.