94% of the universe’s galaxies are permanently beyond our reach

[Brick Gold]

Actually our own galaxy should provide all the opportunities for exploration we will ever need.

We couldn't get our fill if we had instantaneous travel to anywhere we'd want to go, our galaxy is too vast to ever fully explore in billions of years.

 

[frigidweirdo]

Science articles are almost always direct copies of a press release or written up by some researcher using AAAS papers and then copied by everyone else. A lot of news is like that nowadays, actually.

And that's where people get their "knowledge" from.
First rule of knowledge is to ask yourself questions like "who wrote it?" "Why did they write it?" "Where does it come from?" etc etc.

Basic thinking that eludes a lot of people.

 

[Stann]

We don't have to worry about visiting our closest neighboring galaxy, Andromeda, because it's going to collide with the Milky Way in a few billion years

Change the paradigm then. Simply look at time differently.

 

[Stann]

We couldn't get our fill if we had instantaneous travel to anywhere we'd want to go, our galaxy is too vast to ever fully explore in billions of years.

You have to decide. Do you want to live in a world where nothing is possible, or a world where everything is possible. Then simply bend time to accomplish it.

 

[Likkmee]

94%? Well that sucks. So we can only visit about 12 billion galaxies.

Eventually that 94% of galaxies will disappear over the horizon like a sailboat.

Keep in mind: this is a snapshot, if we were ale to leave today at the speed of light. The percentage of galaxies we can never visit grows by the minute. If we just sit here long enough, there will be no galaxies in the sky, save for our own. (And then Hubble would lose the Great Debate!)

94% of the universe's galaxies are permanently beyond our reach

Even if we left today, at the speed of light, we'd never catch up to these unreachable galaxies as dark energy expands the universe.

bigthink.com

• The universe is expanding, with every galaxy beyond the Local Group speeding away from us.
• Today, most of the universe's galaxies are already receding faster than the speed of light.
• All galaxies currently beyond 18 billion light-years are forever unreachable by us, no matter how much time passes.

GOODFERTHEM
The last thing they(or anyone else) need is special delivery of FreeDumb and DemoNcracy, US style
OTOH They may need a GREAT vaccination program.....and a Windoze update

 

[Batcat]

We couldn't get our fill if we had instantaneous travel to anywhere we'd want to go, our galaxy is too vast to ever fully explore in billions of years.

Exactly.

As i said, “ Our own galaxy should provide all the opportunities for exploration we will ever need.”

 

[JoeMoma]

Do you honestly believe humanity has 500 years left?

Why wouldn't I? Barring some kind of apocalypse that kills all life (or almost all life) on Earth, there is bound to be some humans 500 years from now.

 

[Stann]

GOODFERTHEM
The last thing they(or anyone else) need is special delivery of FreeDumb and DemoNcracy, US style
OTOH They may need a GREAT vaccination program.....and a Windoze update

This is not a political form. Your politics isn't wanted or needed here. When official contact occurs they will tell you where you can put your politics.

 

[JohnDB]

Then there's two other things that need to be circumvented to even travel to the nearest solar system outside of our own.

The first is the time dilation effect.
Basically explained that as you approach a significant fraction of lightspeed time for the traveller slows down in relationship to the sender. Meaning that we on earth will continue to age and move through time but the traveler will not. 500 years is a nothing in the vastness of space. But consider world history 500 years ago. The 1500's were a time when America was a distant, far off land that was just a rumor of a place nobility heard about. It wasn't a place you could hop on an airplane and be there in a few hours.
How much of the 1500's has been forgotten?
The governments all have changed several times since then...been a few world wars as well.

Then there's the mass issue.
As an object increases its speed and gets a significant portion of light speed it's mass also increases. Meaning that more energy, focused on propulsion, is required to propel it faster. As well as that the propulsion method itself needs to produce energy that is faster than light.

We can never travel to the stars.

 

[Stann]

Then there's two other things that need to be circumvented to even travel to the nearest solar system outside of our own.

The first is the time dilation effect.
Basically explained that as you approach a significant fraction of lightspeed time for the traveller slows down in relationship to the sender. Meaning that we on earth will continue to age and move through time but the traveler will not. 500 years is a nothing in the vastness of space. But consider world history 500 years ago. The 1500's were a time when America was a distant, far off land that was just a rumor of a place nobility heard about. It wasn't a place you could hop on an airplane and be there in a few hours.
How much of the 1500's has been forgotten?
The governments all have changed several times since then...been a few world wars as well.

Then there's the mass issue.
As an object increases its speed and gets a significant portion of light speed it's mass also increases. Meaning that more energy, focused on propulsion, is required to propel it faster. As well as that the propulsion method itself needs to produce energy that is faster than light.

We can never travel to the stars.

Saying " never " is just asking for trouble. It's just another obstacle to overcome.

 

[JohnDB]

Saying " never " is just asking for trouble. It's just another obstacle to overcome.

Those obstacles are rather huge to overcome.

 

[Stann]

Those obstacles are rather huge to overcome.

I imagine it seems so to most people.

 

[Anomalism]

Then there's two other things that need to be circumvented to even travel to the nearest solar system outside of our own.

The first is the time dilation effect.
Basically explained that as you approach a significant fraction of lightspeed time for the traveller slows down in relationship to the sender. Meaning that we on earth will continue to age and move through time but the traveler will not. 500 years is a nothing in the vastness of space. But consider world history 500 years ago. The 1500's were a time when America was a distant, far off land that was just a rumor of a place nobility heard about. It wasn't a place you could hop on an airplane and be there in a few hours.
How much of the 1500's has been forgotten?
The governments all have changed several times since then...been a few world wars as well.

Then there's the mass issue.
As an object increases its speed and gets a significant portion of light speed it's mass also increases. Meaning that more energy, focused on propulsion, is required to propel it faster. As well as that the propulsion method itself needs to produce energy that is faster than light.

We can never travel to the stars.

500 years ago you woulda been the dude saying it's impossible to fly.

 

[JohnDB]

500 years ago you woulda been the dude saying it's impossible to fly.

Nope...
Birds fly all the time. DaVinci had models that flew...toys but they flew. Kites flew as well. I would have had many things that modeled flying to choose from.

Interstellar travel has none.

 

[Stann]

500 years ago you woulda been the dude saying it's impossible to fly.

"All things are impossible, until they become possible. "

 

[Stann]

Nope...
Birds fly all the time. DaVinci had models that flew...toys but they flew. Kites flew as well. I would have had many things that modeled flying to choose from.

Interstellar travel has none.

None that are common knowledge.

 

[james bond]

You can walk on Mars, thats why everyone wants to go there.

NASA wanted to go there, but US Presidents cancelled them. Now, NASA is working with private cos such as Space X and their funding to go to Mars. I think we'll see man walking on Mars in the 2030s.

 

[Likkmee]

The Andromeda galaxy will collide with the Milky Way in about 4 billion years.

Can I buy an advance ticket for a good seat ?

 

[Likkmee]

Can I buy an advance ticket for a good seat ?

OK wait. I checked. I'm booked in that weekend

 

[Stann]

OK wait. I checked. I'm booked in that weekend

We are in the Milky Way galaxy, we will all have a front row seat.