Meaning: Rockets send spacecraft to travel in space.
Choice of Words: Rockets are vehicles that use fuel to propel themselves through the air or space. Launch means to send something into space. Spacecraft are vehicles that travel in space.
Alternative Expressions
Rockets blast off with spacecraft on board.
Meaning: Rockets take off very quickly and powerfully, with spacecraft inside them.
Choice of Words: Blast off means to take off or launch into the air with great speed and noise. On board means inside or attached to a vehicle.
Rockets propel spacecraft into the cosmos.
Meaning: Rockets use their engines to push spacecraft forward into space.
Choice of Words: Propel means to push or drive something forward. Cosmos is a poetic word for space or the universe.