Could a space elevator be built?

For some scientists and engineers, the enduring challenges are enough to conclude that a Space Elevator will never be built (at least here on Earth). For others, the possibilities that it will allow for are reason enough to keep the concept alive.

How do electrodynamic tethers work?

Electrodynamic tethers are long, thin conductive wires deployed in space that can be used to generate power by removing kinetic energy from their orbital motion, or to produce thrust when adding energy from an on-board source.

Can the Moon be reached by a space elevator?

Anything anywhere else (which includes the Moon) cannot be reached by a space elevator, because the cable connecting the object to the ground would wind all the way around the Earth, at least once every time it orbits the Earth (in the case of the Moon, it would wind around the Earth about ten times per orbit,

Will the Earth ever be tidally locked with the Moon?

Assuming the Sun would never go red giant (and no other big changes in the Solar System), would the Moon actually stay in orbit around the Earth long enough for the Earth to tidally lock with the Moon? By definition, no. The moon has a retrograde motion to the Earth’s rotation.

Why does the Moon always show the same face to US?

Anyway, it’s always showing us the same face, and never any other part. This is because the Moon is tidally locked to the Earth; the same fate that affects every single large moon orbiting a planet. The Moon is locked to the Earth, the Jovian moons are locked to Jupiter, Titan is locked to Saturn, etc.

Is the Moon locked to the earth or Jupiter?

The Moon is locked to the Earth, the Jovian moons are locked to Jupiter, Titan is locked to Saturn, etc. As the Moon orbits the Earth, it slowly rotates to keep the same hemisphere facing us.