Lunar Space Elevator: Is a Rocketless Trip Possible?

In summary, the conversation discusses the concept of a space elevator connecting the Earth and the Moon. The idea of a direct elevator to the moon is complicated due to the moon's constantly changing position, while an elevator from the Earth to a geostationary satellite is more feasible. The speed of the lunar space elevator over the Earth's surface is also brought up, taking into account the Earth's rotation.
  • #1
BosonJaw
40
0
Lunar space elevator...

Based on my limited understanding of the idea.

If this system were to omit a rocket or chemical propellant power plant and is not an unbound free traveling vehicle, I would infer, given the distance of the journey the travel time may venture into the realm of the preposterous... Am I wrong?
 
Astronomy news on Phys.org
  • #2
A space elevator directly to the moon has the disadvantage that the moon isn't always over the same place on Earth making it rather tricky to anchor the bottom of the cable.

A space elavator from the Earth to a geostationary satelite is theoretically quite simple, although a bit of a materials challenge. A simialir elevator from the moons surface to a satelite around the moon is even easier. Going between the two statiosn is pretty easy,
 
  • #3
How fast the Moon?

Just supposing you dropped a space elevator from the Moon to the Earth. The bottom doesn't have to be attached to the Earth, the bottom could just, well, sort of dangle there over the surface of the Earth.

If you did do that, how fast would the dangling tip of the Lunar S.E. move over the surface of the Earth?
 
  • #4
The Earth is rotating (at the equator ) at around 900mph (40,000km in 24hours)
Even ignoring the motion of the moon that is going to create problems.
 

1. What is a lunar space elevator?

A lunar space elevator is a hypothetical structure that would allow for transportation between the surface of the moon and space without the use of rockets. It would consist of a cable anchored to the surface of the moon and extending into space, with a counterweight at the other end to balance the gravitational pull.

2. Is it possible to have a rocketless trip to the moon?

The concept of a lunar space elevator is still under research and development, and it is not yet possible to have a rocketless trip to the moon. However, with advancements in technology and materials, it may become a reality in the future.

3. What are the potential benefits of a lunar space elevator?

A lunar space elevator could greatly reduce the cost and time of space travel, as well as make it more accessible to a wider range of people. It could also be used for transporting materials and resources to and from the moon.

4. What are the challenges in building a lunar space elevator?

One of the main challenges is finding a material strong enough to withstand the tension and weight of the cable over such a long distance. Another challenge is creating a stable anchor point on the surface of the moon.

5. How does a lunar space elevator compare to a traditional elevator?

A lunar space elevator would operate on the same principle as a traditional elevator, using a counterweight to balance the gravitational pull. However, it would require much stronger materials and be significantly longer in order to reach from the moon's surface to space.

Similar threads

  • Science Fiction and Fantasy Media
Replies
22
Views
3K
  • Astronomy and Astrophysics
Replies
6
Views
4K
  • Astronomy and Astrophysics
Replies
4
Views
2K
  • Special and General Relativity
2
Replies
65
Views
4K
  • Aerospace Engineering
Replies
1
Views
2K
  • Sci-Fi Writing and World Building
Replies
4
Views
2K
Replies
23
Views
3K
Replies
12
Views
2K
  • General Engineering
Replies
15
Views
5K
  • Introductory Physics Homework Help
Replies
1
Views
1K
Back
Top