This is still ipman, completion of answer: The astronauts stay for a week or two and collect samples and data. On the last day, the lander blasts back up and catches up with the orbiter, and the lander is ejected. The orbiter, astronauts and data, then begin the long journey toward earth. When it is reached, the orbiter falls at a rate so fast the friction causes it to blast heat in the form of fire from the bottom. Then, ultrastrong parachutes deploy and the orbiter splashes down into the ocean, only to be picked up by the navy. Take it from me, I'm only 12 years old!
A rocket is able to reach the moon from earth by moving at a velocity known as escape velocity. Escape velocity is attained when the sum of the speed of kinetic energy and gravitational potential energy is zero.
2 years ago
Last edited at 2:09PM on 12/12/2011
Well, here is the answer to what I thought your question meant... A rocket lifts off with solid or liquid rocket fuel which has to do with combustion and pressure. An onboard computer and mission control (aka, Houston) has a pre-planned flight route which judges the position of the moon now and where it will be at the eta (estimated time of arrival). When the rocket gets there, (not in one piece, sections are taken off for weight saving), it enters what little gravity the moon has and breaks off into a little orbiting base for a person. It later docks with a pre-launched moon lander where two to three people get in. The lander is ejected, and the astronauts are then on their way to the moon. Extreme precautions are needed for landing.