Space stations are manned vehicles used for scientific research. Satellites are unmanned robotic vehicles for scientific research.
India has launched approximately 74 satellite rockets.
Retro rockets .
Rockets are used as engines to accelerate the satellite to a speed fast enough to get it in orbit.
You give velocity to a satellite through rockets. The rockets use some powerful fuel - for example, a mix of hydrogen and oxygen - to push them into orbit.
Korea is not launching rockets at the US. North Korea just launched a satellite on a rocket into space.
Space stations are assembled in space, section by section. The sections are pre-assembled on earth in pieces small enough to be carried into space by rockets, then removed from the rockets and attached to the existing station.
Some important rockets include the Saturn V, Falcon 9, Delta IV, and Atlas V. These rockets have played significant roles in space exploration and satellite launches.
Solid fuel rockets use a solid propellant mixture, which is more stable and easier to store compared to liquid fuel rockets that use liquid propellants. Iron rockets typically refer to solid fuel rockets using iron particles as part of the propellant mixture to enhance thrust. Overall, solid fuel rockets are simpler and more reliable but lack the efficiency and flexibility of liquid fuel rockets.
Some of the rockets launched by India include the Polar Satellite Launch Vehicle (PSLV), Geosynchronous Satellite Launch Vehicle (GSLV), and the more recent GSLV Mark III. These rockets have been used to launch satellites for various purposes, including communication, navigation, and scientific research.
Rockets primarily are used to launch satellites into space. Alternatively, the space shuttle is used for very large satellites, but that option will no longer be available when the fleet is retired at the end of 2010.
A trajectory is the path a rocket takes, it is not a thing that can be dropped. Further rockets are used to "launch" a satellite into orbit, not drop it (so that it falls back to Earth).
Companies like SpaceX, Blue Origin, and Boeing are some of the major manufacturers of rockets. These companies design, build, and launch rockets for various purposes including satellite deployment, space exploration, and commercial space travel.