The simplest and best answer to that question is:
-- Without gravity, there would be no orbits.
-- Once you completely understand gravity, you can figure out everything there is
to know about orbits, because it all comes from the behavior of gravity.
"Gravity" is responsible for the existence of planetary orbits, and for their shapes and periods. It's also the reason for the spherical shapes of the planets, and for the existence of atmospheres, in the case of those planets that have any.
Gravity is the force of attraction between objects with mass. The moon orbits the Earth due to Earth's gravity, while the Earth orbits the sun due to the sun's gravity. The gravitational forces between these objects keep them in motion and create the orbits we observe in the solar system.
Planets are held in orbit around a star by gravity. Gravity is the force of attraction between objects with mass, and it is what keeps planets in their respective orbits around stars like our Sun. Without gravity, planets would not be able to maintain their position in space.
Gravity is the force that keeps the planets in their orbits around the sun. It pulls the planets towards the sun, while their forward motion keeps them from falling into it. Gravity also influences the shape and stability of the planets' orbits.
"Gravity" is the cause of orbital motion. No gravity . . . no orbits, and things just sail away in straight lines. Without gravity, there's no such thing as a satellite of anything.
It has to get up to 7km a second to get out of earth's orbit, then it orbits around earth.
The simplest and best answer to that question is: -- Without gravity, there would be no astronomical orbits. -- Once you completely understand gravity, you can figure out everything there is to know about orbits, because it all comes from the behavior of gravity.
The planets' own gravity has made them spherical. Also there are other effects such as their ability to retain an atmosphere, etc. The Sun's gravitycauses the orbits of the planets.
The sun's gravity holds the planets in their orbits. It also holds other space objects in their orbits, such as asteroids.
The simplest and best answer to that question is: -- Without gravity, there would be no orbits. -- Once you completely understand gravity, you can figure out everything there is to know about orbits, because it all comes from the behavior of gravity.
gravity
The sun itself
Gravity
no
Our planets are kept in their orbits around our star by the force of gravity.With all due respect, I should be surprised if the principle were not the samewhere you come from.
Gravity from the Sun holds the planets in their orbits.
easy gravity :)