purple unicorns
because the earth's gravity is pulling the moon towards itself just like earth gets pulled by the sun with the help of its gravity
Space satellites are typically located in different orbits around Earth, depending on their purpose. Some satellites are in low Earth orbit (LEO) at altitudes around 400-1,200 km, while others are in medium Earth orbit (MEO) or geostationary orbit (GEO) at altitudes of around 20,000 km and 36,000 km, respectively. Additionally, there are satellites in higher orbits for specific functions, such as those used for deep space exploration.
Gravity is responsible for keeping the Earth in its orbit around the Sun, which allows the Earth to rotate as it moves. As the Earth spins on its axis, the force of gravity helps maintain its balance and stability, preventing it from moving off course or tilting excessively.
Satellites send information. They can also take pictures of different items. Also, Satellites can help stranded boaters as well. They can also relay signals, which is what makes satellite T.V. possible.
It is not gravity because there is no gravity in space, only some on certain planets, deffiantly on earth. It is done by the strength from other planets the sun for instance. Heat waves. Some of the gravity in space does help keep the planets and satellites in orbit.
They may happen to cross Earth's orbit, and just crash into it. The gravity of the planets can also help increase the likelihood of a collision.
A satellite can do many things. There are weather, communication, navigation, and scientific satellites. Mostly the names will help you. The weather satellites give info about the weather of earth at all times. The communication satellites help get you communicating with other people like over phone or radio and television. Navigation satellites help sailors and other vehicle drivers navigate thoughout where they are going. Scientific satellites basically find out sciency things about the earth like radiation.
None. Venus has no natural moons or satellites. The only satellites that might be orbit around Venus are those put there by humans from Earth to help study the planet, whose surface is too hot to land any spacecraft there.
The absolute minimum number is for momentary complete cover is 4 in a triangular prism shape, but these will not stay in the right positions as they are not in a geostationary orbit. 3 in geostationary orbit will give very bad and failing coverage at the poles and at the outer edge of their footprint 6, 3 in polar orbit and 3 in geostationary orbit will help, but for a practical coverage 4 in geostationary orbit and 4 in polar orbit will be more practical
it keeps it in orbit
The Sun pulls the planets around it
The first artificial satellite that had a particular purpose (other than just for scientific research) was the Echo satellite; a large mylar balloon placed in orbit to reflect radio signals back to the Earth. Now, satellites are used for all kinds of communications; TV, cell phones, overseas phone calls, internet and such; weather satellites that help to predict the weather and track storms, and reconnaissance satellites that take photos of the Earth. Oh; GPS satellites.