Launch vehicle
발사체
The rocket that carries a satellite or spacecraft from the ground into space.
Overview
A launch vehicle rises by burning fuel and shooting it out the back. To put something into an orbit around Earth, going up high is not enough. It also has to travel sideways at close to 8 km per second.
To save weight, rockets are usually built in several stages. When the lower stage has used up its fuel, it is dropped, and the upper stage keeps flying. The cargo being carried is called the payload.
An everyday example
It works like a delivery truck. When trucks (launch vehicles) get better and shipping gets cheaper, more goods (satellites) are sent and new businesses appear.
Why it matters
Whatever you want to do in space, you first have to send it up. As launch costs fall, satellite internet, space observation and Moon missions become real.
Also calledrocket, space launch vehicle