How far we are from unlimited space travels?

[DariaRD]

Hey, I'm new here. Maybe (propably) someone already raised this topic but I've been wondering what's the most likely way to travel in space ( according to physic rules and so on).
Spacecrafts - seems to be the most reachable for mankind. But.. despite all that technology we can manage there are still a lot of problems to moving matter through space. So maybe using wormholes ( ok ,no one has actually investigated it) should be more efficient way to travel ? I'm curious your opinion, thanks all for response.

 

[TheCoolBrit]

Using current theories , If we assume the speed of light (c) is a constant in space then the physical barrier would be as we move close to the the speed of light the mass of a spacecraft increases towards infinity, therefore the energy required to go faster is a major limiting factor. Also the spacecraft would also require a massive force field around it as even very small amounts of matter hitting the spaceship could destroy it. There is also the issue of the expansion of the Universe that creates a cone of possible distance the spaceship can travel(see video link below).
Faster than light travel (FTL) is an abstract concept, even the warping of spacetime would require unimaginable amounts of energy to generate and then to create a safety bubble inside the warp field to protect the spacecraft is hypothetical.
Practically, given millions of years we may be able to reach as far as stars in the galaxy's within our local group.
One theory is that as we travel closer to the speed of light the effects of time dilatation grows for those on board the spaceship relative to the observer from he point we left from. Scientist are still the consequences of this as from some other relative observers point in the universe everything is moving at the speed of light.

See
Complexities of near-light-speed travel explained in cute NASA animation

TRUE Limits Of Humanity – The Final Border We Will Never Cross

 

[Classical Motion]

The only way we will visit another star is if another star came to us. Even if we had a craft and supplies for star travel, we wouldn't know which direction to go. If we follow the light, we would have to be going faster than the star. A super long time and long distance trip.

We would have to aim for where the star will be. And to do that, we need to know our trajectory here......and the trajectory of the target star. And you don't want to miss.

 

[mokeshame]

I think far. Nuclear fission and nuclear fussion are not correct technologies to enable humanity to the stars. This is because we have an moving universe and those to harness the power of slowness in our universe. If we could use the opposite the fast universe lanes. It would be much quicker. To do so we must advance on neutrino research.

 

[George²]

I think far. Nuclear fission and nuclear fussion are not correct technologies to enable humanity to the stars. This is because we have an moving universe and those to harness the power of slowness in our universe. If we could use the opposite the fast universe lanes. It would be much quicker. To do so we must advance on neutrino research.

If we don't make progress in managing nuclear interactions, we won't make it to the next level either.

 

[TheCoolBrit]

The only way we will visit another star is if another star came to us. Even if we had a craft and supplies for star travel, we wouldn't know which direction to go. If we follow the light, we would have to be going faster than the star. A super long time and long distance trip.

We would have to aim for where the star will be. And to do that, we need to know our trajectory here......and the trajectory of the target star. And you don't want to miss.

predicted that Proxima Centauri will make its closest approach to the Sun in approximately 26,700 years, coming within 3.11 ly (0.95 pc).

 

[Atlan0001]

A lot of people, including physicists, haven't figured it out yet. There is no motion, no motion at all of any mass or energy whatsoever, to the speed of light! Take a wild guess as to what that means!

Now, on the other hand, if you reel out a length of tether further and ever further out while keeping it attached to a source, you will be bound for an infinitely massive black hole in that eventually inevitably curving, coiling, ever more energetically massively inherently weighty (massively inherently dense) closed systematically attached length of tether!

Thank goodness, though, for the inevitability of eventually running into the revolutionary divide, the quantum-ness of discrete quanta!

Strong interaction - Wikipedia

en.wikipedia.org

That accelerating expansion of universe (faster than the speed of light) is in fact accelerating in dark energy cellular division of universe into two and many more (to infinity) individually subordinate mirror self-similar universes. Conservations of mass and energy, keeping balances of infinities, including paging frames of light ("take a wild guess as to what that means!"), don't you know.

 

[TheCoolBrit]

The only way we will visit another star is if another star came to us. Even if we had a craft and supplies for star travel, we wouldn't know which direction to go. If we follow the light, we would have to be going faster than the star. A super long time and long distance trip.

We would have to aim for where the star will be. And to do that, we need to know our trajectory here......and the trajectory of the target star. And you don't want to miss.

This is not just true for interstellar travel to other stars but is the same for every other space trip weather it be to the ISS or another planet or Moon. Everything is in space is moving in orbits.

 

[Hardcrunchyscience]

Hey, I'm new here. Maybe (propably) someone already raised this topic but I've been wondering what's the most likely way to travel in space ( according to physic rules and so on).
Spacecrafts - seems to be the most reachable for mankind. But.. despite all that technology we can manage there are still a lot of problems to moving matter through space. So maybe using wormholes ( ok ,no one has actually investigated it) should be more efficient way to travel ? I'm curious your opinion, thanks all for response.

Infinitely far away. As in will never happen.