Who says they haven't already?

I hope so.

I do think it's unlikely. Very... very unlikely.

But I really hope we do.

Why another galaxy ? Isn't this one big enough ? Anyway. if we're still around in a few more hundred years we could make it to the nearest stars though it'd most likely be a one way trip.

I think another galaxy is pushing it too far without faster than light travel. As yet that is physically impossible as far as science knows. Therefore, even though I hate to say it, I don't think we will ever get to another galaxy.

Yes. When we stop feeding the military industrial complex monster.

I think it could be done if we could travel interdimensionaly.

When we find the spice we will !!

Considering the difficulty we have going to our own moon or even a planet in this solar system, i think another star even is difficult to envisage. Another galaxy seems the height of hubris.

if we live long enough, I think it likely.

I don't think so. I don't think we'll exist as a species even in the time it takes for a probe to reach the nearest star system. But I wonder if some species of artificial being, originating from human manufacture far back in its evolution, may spread itself throughout our own galaxy and beyond.

Yes,

According to secret government whistle-blowers, and the document "Unacknowledged" - seen on Netflix and YouTube - containing videos of Hillary, Obama, NSA officials, astronauts, and scientists admitting that the US government has been suppressing information on US interactions and use of alien technology since WW ll, after it was captured from the Germans, who back engineered it from two crashed UFOs.

The US government keeps it classified and aggressively suppresses all UFO reports-ridiculing the people who report them, so they won't have to share the advanced alien technology. A few years ago, a European hacker was condemned by the NSA for hacking into their database and finding payments to alien US military officers and info on putting down slave rebellions on Mars base factories.

'UFO Hacker' Tells What He Found - NSA furious [wired.com] via @WIRED

It's possible with the development of artificial intelligence that it will figure out a way to get us there.

nah, not a periwinkles chance in a supernova

One day.

Absolutely, we've only scratched the surface of technology. Distance is the main problem, so you would have to be "frozen" for years during the trip.

I don't know if humans will travel to another galaxy.... On the other hand, I do know that almost no one believed humans would fly, and this is only a little bit more than 100 years ago

Yes but not at the technology level we are at at this time. we still have to use brute force to produce energy to run our world. solar is a possible answer but we lose too much transporting the energy. wind costs more to even produce a tower than it would ever regenerate by itself. the next big thing is being able to manage the small forces that hold atoms together. all we can do now is smash them to release energy. not efficient or clean.

Too far. Much too far.