When will we reach the Moon, Mars, Jupiter, another star and another galaxy...

Time travel may be impractical now because we don't have the technology now but if it is theoretically possible then given infinite amount of time to get the job done we will travel in time at one point.

On the other hand a lot of physics is not exactly set, it can be refined. Right now forward time travel is theoretically possible and perhaps future advances in technology would make it practically possible unless in the future one of the refinements of physics would state that future time travel is in fact impossible.

So bottom line anything that is theoretically possible IS practically possible given infinite amount of time to achieve it.

So if you say physics don't change...if thats the case and it won't get refined then in the future we will be able to reach both other galaxies and other stars, at least with a probe.
 
Time travel to the past is not possible. There is not an infinite amount of time to travel to the future. The universe reaches maximum entropy in 10^100 years.

The first step is to get CERN working which should shed some light on exotic matter, FTL, wormholes and theoretical things relating to travelling vast distances in short times.
The second step is to get fusion reactors working.

Fusion will allow mass production of high energy materials such as titanium, aluminium and travel to Mars in days.
It may even allow us to produce enough anti-matter using particle accelerators for interstellar travel.
 
Superewza said:
In Low Earth Orbit. Say what you will, and yes it was the 'cheaper option than going to mars', but the ISS is still a huge achievement that doesn't get the credit it deserves.
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But it's hardly a clear step on GETTING TO ANOTHER GALAXY IN 250 YEARS is it?

I'm questioning the suggestion by someone that we could be in another galaxy in 250 years - http://forums.overclockers.co.uk/showpost.php?p=19234893&postcount=328

Seems an epic peace of science fiction to me...
 
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cern maybe able to help speed things up faster once they analyses their data. More research needs to be done on Quantum Science.

we need a new type of fuel most important before we can explore space.
Space exploration will only become viable once we find a cheap energy source.
 
Best lolfest ever at people trying to deny any kind of close-to-light travel in 250 years without any proof AT ALL.

Ignorance is popular I heard :rolleyes:

(Inb4 Scifi)
 
It cant be done!

Why?

Because it cant!

But why cant it!

It just cant be done okay!

Are you sure?

Positive!!

But why?

Because it's impossible!!!

Why is it impossible!?

Because it's not possible!!

But why?

......

.....
 
Nanoman said:
Yea at least, we would need warp drive or some sort of device that could turn space craft massless so we could travel at the speed of light. Supplies needed for a return flight of that distance would be on another level.
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But if you achieve the speed of light, would you not instantly reach your destination, regardless of distance.

So 50,000 light years, when you reach the speed of light, you are there, however it has been 50,000 years? (to people on earth)

Going at the speed of light time would be frozen to you? as any time spent turning off the engine would result in an infinite time outside the space ship, so how can you stop??

Only solution would be to travel at like 99.9999999999999999999999999999% speed of light or whatever..

Or am i insane?
 
He's not insane - according to the equations of relativity, at the speed of light length contraction is infinite, so your travel time to anywhere is 0 from your own perspective (but distance/speed of light for the folks back on earth). But you can't go at the speed of light, so dont worry about it.
 
PermaBanned said:
You're insane, light still takes time to get from one place to another. I think you're confusing it with the Warp 10 barrier ;)
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I think what he's saying is as you approach light speed the "factor" time is slowed for you. at 99.99% you're experiencing time much much slower than 99.9% so when you finaly reach 100% it might be so much of a reduction that it's actually just a fraction of a second or even zero time at all for you.

So from your perspective you arrive instantly, but obviously for everyone outside the ship thousands of years will have passed.


platinum87 said:
Going at the speed of light time would be frozen to you? as any time spent turning off the engine would result in an infinite time outside the space ship, so how can you stop??
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Not sure when you get infinite time for the rest of the universe, unless you mean because time is passing so slowly for the whole ship including the engine the say 5 seconds it takes for it to start providing reverse thrust that 5 seconds of your time would equate to millions + of years which i guess would be an issue if at 100% light speed time stops as that would be infinity outside the ship, as long as it moves fractional forward it should be able to stop but would mean it could only be used for a very long journey.



one thing to think about though is if we get a ship to move at 99.999% of the speed of light it's course will be at the very minimum decades of real time long, and every single piece of dust + sized matter would have to be tracked logged and predicted before the journey as that ship will not be able to manoeuvre around anything and even a pretty small pick-up truck sized
metal asteroid (which would be impossible to detect from earth ahead of the journey and to predict it's movement for all the time taken to get there) would be a devastating impact to the ship.
 
@Liam: Ah, i get it (at least i think so)- that's how to get to the speed of light you would have to have infinite energy and infinite mass, hence occupying every point in the universe simultaneously.
 
Garonazz said:
Best lolfest ever at people trying to deny any kind of close-to-light travel in 250 years without any proof AT ALL.

Ignorance is popular I heard :rolleyes:

(Inb4 Scifi)
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Talking of LOLFESTs though. I read someone suggest we'd be in ANOTHER GALAXY within 250 years, which would actually suggest faster than light travel, assuming in just a hundred years or less?
 
NeilFawcett said:
Go on, put your scifi heads on and predict how many years till:-
- A human lands on the Moon again
- A human lands on Mars
- A human reaches Jupiter (Arthur C Clarke said we'd already be there :))
- A probe or human reaches another star
- A probe or human reaches another galaxy
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Moon - within 20 years.

Mars - within 30 years.

Jupiter - within 50 years.

Star - within 500 years.

Galaxy - never. The nearest is over 2,000,000 LY away and that is one of billions known.

Comparing sci-fi to reality, it has been very optimistic. By 2001 we were at Jupiter according to Arthur C Clarke.

By 2019 we had interstellar travel in Bladerunner.

The Alien film had interstellar travel by 2100, the Alien film being set in 2122 and Aliens in 2179.
 
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