5,625,000 pounds of fuel. However, gravitational pull is also a main source of propulsion.
The actual amount of fuel needed to travel to the moon and back depends on the specific spacecraft and propulsion system used. However, it typically requires a significant amount of fuel due to the distance and speed required to make the journey. For example, the Apollo missions used approximately 300,000 gallons of fuel to reach the moon and return to Earth.
The Apollo 11 mission used approximately 47,000 gallons of rocket fuel. This fuel was mainly used for the launch and journey to the Moon.
The discovery of ice at the moon's poles is important for future space flights because it could provide a potential source of water to sustain human life and fuel production on the moon. Water can be used for drinking, irrigation, and oxygen generation, while hydrogen and oxygen from water can be used to create rocket fuel, reducing the need to transport resources from Earth. This discovery could enable sustainable missions to the moon and beyond.
The moon used to be part of the earth
The main reason we would like to find water on the moon is that we will not have to bring it from earth.Water can be used as rock fuel if you separate the two components: Hydrogen and Oxygen. If water is present on the moon, we can create our own rocket fuel on the moon when we explore the rest of the solar system and beyond.Water on the moon is of course not only important for rocket fuel. If we in future wish to set up a base on the moon, the people living there will need water to drink and to irrigate the plants (for growing food in greenhouses). We do not need to bring this water if water already exists on the moon.Leaving earth's gravity is difficult and require a lot of energy (e.g. expensive in terms of fuel costs). Water is relatively heavy (and take up a lot of room). To lift it past earth's gravity is very taxing. It is much easier to escape the moon's gravity due to the lower gravitational pull.If we can find water on the moon, we do not need to bring it from earth.
Earth Moon Earth (EME) transmitters can be used from any location with regular vision of the moon. The transmitters rely on sending signals that bounce to the moon and back to a location on earth.
The moon that accompanies Earth is simply called "Moon" - note that it is written with a capital "M", since in this case it is used as a proper name.
The term used when the moon is farthest away from the Earth is "apogee." At apogee, the distance between the Earth and the moon reaches its maximum, which can affect the moon's appearance in the sky and its gravitational influence on Earth. This phenomenon occurs in the moon's elliptical orbit around our planet.
The word "perigee" is used to refer to the time when the Moon is closest to the Earth in its orbit.
The moon does have gravity, just less than Earth's. When a rocket lands on the moon, it is pulled towards the moon's surface by its gravity, similar to how objects are pulled towards Earth. The rocket's engines are used to slow down its descent and land safely on the moon's surface.
The 'Saturn V' rocket that launched the moon mission from earth was as tall as a 40 story building. It weighted almost 7 million pounds and had to carry fuel and supplies for the complete round trip. More than half that fuel was expended just to get everything else into Earth orbit. The 2 astronauts landed on the moon in a tiny, lightweight craft called an LEM - it weighed about 10,000 lbs when it took off (part of it stayed on the surface of the moon). When it took off it had to carry only enough fuel to reach the Lunar Module then orbiting the earth. So the rocket for liftoff from the moon could be very much smaller than the one needed to liftoff from the earth at the start of the mission.
Yes, you can stand on the moon. The moon has gravity that is about 1/6th the strength of Earth's gravity, so you would weigh less and feel lighter when standing on the moon compared to standing on Earth.