What time is it in Space? (Not the ISS)

[Rockrolex]

Originally Posted by Roley

Good analogy, However, satellites would not exist beyond our galaxy.

How do you know that?

[Roley]

Originally Posted by Rockrolex

How do you know that?

Let me rephrase that. Satallites to date do not exist beyond our galaxy.
Correct me if I'm wrong.

[joeychitwood]

Originally Posted by Roley

Good analogy, However, satellites would not exist beyond our galaxy.

True. The point was that Gravity itself affects the passage of time. Even a clock on your main floor nightstand runs faster than one in the basement. Imagine the difficulties coordinating time as you raced past a super massive black hole.

[Roley]

Originally Posted by joeychitwood

True. The point was that Gravity itself affects the passage of time. Even a clock on your main floor nightstand runs faster than one in the basement. Imagine the difficulties coordinating time as you raced past a super massive black hole.

Interesting fact. Makes sense that we would see the distortion of spacetime with the force of gravity. Not to mention black holes, clusters, planets, warp speed.

Maybe an Atomic clock of some sort would be installed on every spacecraft and a Universal space time would be established.

[Burlington]

A fascinating question...I have always liked the concept of us observing now (in our present) events which occurred millions of years ago and the observable effects have taken until now to reach us.

[GradyPhilpott]

Originally Posted by Roley

Interesting fact. Makes sense that we would see the distortion of spacetime with the force of gravity. Not to mention black holes, clusters, planets, warp speed.

Maybe an Atomic clock of some sort would be installed on every spacecraft and a Universal space time would be established.

Atomic clocks are not immune to the effects of gravity.

I personally don't believe that the reaction of a timekeeping device of any type is synonymous with the passage of time, but that's just me.

https://www.sciencealert.com/portabl...vistic-geodesy

[Romeojk]

So, if I have a 10:00am appointment with my dentist on the moon, am I going to be early or late?

[GradyPhilpott]

Originally Posted by Romeojk

So, if I have a 10:00am appointment with my dentist on the moon, am I going to be early or late?

Which moon?

NASA Discovered a “Mini” Moon Orbiting Earth

[kneedeep]

I don't believe your deep space encounter is possible for 2 space travelers starting at separate space-time origin points in intergalactic deep space. Many more variables than equations to solve them. LOL!

[GB-man]

It’s 5 o’clock

[Romeojk]

Originally Posted by GradyPhilpott

Which moon?

NASA Discovered a “Mini” Moon Orbiting Earth

That is cool. I am always so amazed when I look up on a clear night and think about the possibilities. It’s a pretty big sky and to think people can fly around in space is crazy.

I already follow the ISS and get texts when it’s coming overhead my area. https://spotthestation.nasa.gov/sightings/

Now I’m following the NASA asteroid twitter to see if I can find out if that mini-moon is ever visible http://www.twitter.com/AsteroidWatch



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[joeychitwood]

Originally Posted by kneedeep

I don't believe your deep space encounter is possible for 2 space travelers starting at separate space-time origin points in intergalactic deep space. Many more variables than equations to solve them. LOL!

"I'll meet you at Andromeda, third star from the left in two and a half million years."

"Okay, but this better be worth the trip."

[Roley]

Originally Posted by joeychitwood

"I'll meet you at Andromeda, third star from the left in two and a half million years."

"Okay, but this better be worth the trip."

I'll meet you there. What time would you like to meet?

[joeychitwood]

Originally Posted by Roley

I'll meet you there. What time would you like to meet?

13.8945673827635241963845455 billion years ATBB. (After the Big Bang)

[Roley]

Originally Posted by joeychitwood

13.8945673827635241963845455 billion years ATBB. (After the Big Bang)

Now were getting somewhere.

[77T]

Originally Posted by joeychitwood

"I'll meet you at Andromeda, third star from the left in two and a half million years."



"Okay, but this better be worth the trip."

Originally Posted by Roley

I'll meet you there. What time would you like to meet?

Not far fetched - it will happen...as for timing (the original question) you can read up on a real world rendezvous...
https://www.space.com/22783-voyager-...tar-flyby.html

Just ask Voyager Chief Scientist Ed Stone...

From the article:
“Voyager 1, which is zipping along at 38,000 mph (61,000 km/h), is currently 11.7 billion miles (18.8 billion kilometers) from Earth. Voyager 2 took a different route through the solar system and is now 9.5 billion miles (15.3 billion km) from home.

Voyager 2 may join its twin in interstellar space three or four years from now, Stone said, stressing that it's tough to predict a departure date in advance.”


Now if you believe in parallel universes or dimensions, meet me on the 2nd Tuesday of next week.


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[kneedeep]

Originally Posted by Roley

Now were getting somewhere.

I started out 1.3745 million years ago, hope I make it on time. If I'm late order me an Old Fashioned please, I'll get there within a few hundred thousand years.

[TheVTCGuy]

Originally Posted by GB-man

It’s 5 o’clock

I think your watch is slow, its 5:05

[Cryten]

Time isn't the only issue. What about navigation? Moving vast distances through moving celestial bodies isn't going to be easy.

One theory says that any given position in space looks like any other given position. There aren't any fixed stars or galaxies that we can use to navigate like we do on earth.

[joeychitwood]

This speculation is all unnecessary, because somewhere in the infinite number of universes, we've already met. Once wearing a Tudor Sub. Once wearing a Datejust. Once with one less hair on my head. Once with you wearing unmatched socks. Everything that can possibly happening in every combination of the one-hundred thousand quadrillion vigintillion atoms in our KNOWN universe (10 to the 82nd power) is happening now. That adds up to 10 raised to the power of 10^122, or 10^10^122 possible combinations of atoms. Now change the timing of all those combinations, and you're dealing with a seriously big number. But even that number isn't infinite, because it only take into consideration the KNOWN universe.

The good news is that in one of those universes, I am 6'5" tall, 32 years old, good looking, rich, suave, and living with a harem of the most beautiful women in the universe. And I can order any Rolex I want and have it delivered that day. No waiting time.

[joeychitwood]

Double post.

[Roley]

Originally Posted by joeychitwood

This speculation is all unnecessary, because somewhere in the infinite number of universes, we've already met. Once wearing a Tudor Sub. Once wearing a Datejust. Once with one less hair on my head. Once with you wearing unmatched socks. Everything that can possibly happening in every combination of the one-hundred thousand quadrillion vigintillion atoms in our KNOWN universe (10 to the 82nd power) is happening now. That adds up to 10 raised to the power of 10^122, or 10^10^122 possible combinations of atoms. Now change the timing of all those combinations, and you're dealing with a seriously big number. But even that number isn't infinite, because it only take into consideration the KNOWN universe.

The good news is that in one of those universes, I am 6'5" tall, 32 years old, good looking, rich, suave, and living with a harem of the most beautiful women in the universe. And I can order any Rolex I want and have it delivered that day. No waiting time.

It's not a speculation, It's real time, how would I find you NOW? Would I even need a clock relative to any earth time if I had no intention of communicating or returning to Earth?

[Roley]

Originally Posted by Cryten

Time isn't the only issue. What about navigation? Moving vast distances through moving celestial bodies isn't going to be easy.

One theory says that any given position in space looks like any other given position. There aren't any fixed stars or galaxies that we can use to navigate like we do on earth.

Your starship would be positioned in space. How would I determine your position so that we could meet?

[joeychitwood]

Suppose we could use the quantum phenomenon of entanglement to communicate instantly back and forth with another being in the universe who lives on a planet two light-years away. Because we have a spacecraft that can fly at the speed of light, we agree in the entanglement phone call to fly to their home planet and meet for a watch GTG.

We board our craft and fly at the speed of light, 186,000 miles per second, arriving two years later. Assuming the distance between our planets hasn't changed, we'd arrive to find our friend has been waiting 30 years for us to arrive. After the GTG, we'd fly for another two years back to Earth at the speed of light. We would be 4 years older than when we left, but our children would be 60 years older.

[TheVTCGuy]

Originally Posted by joeychitwood

This speculation is all unnecessary, because somewhere in the infinite number of universes, we've already met. Once wearing a Tudor Sub. Once wearing a Datejust. Once with one less hair on my head. Once with you wearing unmatched socks. Everything that can possibly happening in every combination of the one-hundred thousand quadrillion vigintillion atoms in our KNOWN universe (10 to the 82nd power) is happening now. That adds up to 10 raised to the power of 10^122, or 10^10^122 possible combinations of atoms. Now change the timing of all those combinations, and you're dealing with a seriously big number. But even that number isn't infinite, because it only take into consideration the KNOWN universe.

The good news is that in one of those universes, I am 6'5" tall, 32 years old, good looking, rich, suave, and living with a harem of the most beautiful women in the universe. And I can order any Rolex I want and have it delivered that day. No waiting time.

Originally Posted by joeychitwood

Suppose we could use the quantum phenomenon of entanglement to communicate instantly back and forth with another being in the universe who lives on a planet two light-years away. Because we have a spacecraft that can fly at the speed of light, we agree in the entanglement phone call to fly to their home planet and meet for a watch GTG.

We board our craft and fly at the speed of light, 186,000 miles per second, arriving two years later. Assuming the distance between our planets hasn't changed, we'd arrive to find our friend has been waiting 30 years for us to arrive. After the GTG, we'd fly back to Earth for another two years at the speed of light. We would be 4 years older than when we left, but our children would be 60 years older.

Well of course! Everyone knows this...

[joeychitwood]

Just think, Paul. Every time you flew in your supersonic F-18, you returned to the ground slightly younger than all of us who remained on the ground.

[Abdullah71601]

Originally Posted by kulak

Fun fact. A Rolex in orbit would not stay perfectly in sync with earth due to relativity.

Originally Posted by breitlings

It would take a long time at 20k-30k MPH, you need to be closer to the speed of light for it to be out of sync in a noticeably short amount of time if observing from earth. But you are absolutely right, even things like atomic decay slow down the faster you get.


A very interesting question, especially if you consider effects of gravity on C, and potentially wormholes and string theory's ~17 dimensions.

Time dilation is gravity dependent. Time moves slower where gravity is strongest (closest to gravitational mass). Time for the person on the planet would move slower than time for the person in orbit regardless of velocity.

[TheVTCGuy]

Originally Posted by joeychitwood

Just think, Paul. Every time you flew in your supersonic F-18, you returned to the ground slightly younger than all of us who remained on the ground.

VNE of my bird was 1.6, to exceed Mach 1 we had to use afterburner, zone 3 or higher, which means we were burning a LOT of gas; so the didn’t want us exceeding Mach 1 very much (Combat in Desert Storm was a different story). I wish you had told me this a long time ago Joey, I would have gone supersonic a lot more often! Just think, I could have been about 35 years old right now!!!

[Valenciawatchrepair]

Originally Posted by joeychitwood

Suppose we could use the quantum phenomenon of entanglement to communicate instantly back and forth with another being in the universe who lives on a planet two light-years away. Because we have a spacecraft that can fly at the speed of light, we agree in the entanglement phone call to fly to their home planet and meet for a watch GTG.

We board our craft and fly at the speed of light, 186,000 miles per second, arriving two years later. Assuming the distance between our planets hasn't changed, we'd arrive to find our friend has been waiting 30 years for us to arrive. After the GTG, we'd fly for another two years back to Earth at the speed of light. We would be 4 years older than when we left, but our children would be 60 years older.

And this is why it will never work. lol. The people you care about will grow old and die while you travel. And, you would probably go insane from it. lol. Imagine everyone you know right now being dead after one "trip" you make to outer space. Talk about a depressing homecoming!!

[Roley]

Originally Posted by joeychitwood

Suppose we could use the quantum phenomenon of entanglement to communicate instantly back and forth with another being in the universe who lives on a planet two light-years away. Because we have a spacecraft that can fly at the speed of light, we agree in the entanglement phone call to fly to their home planet and meet for a watch GTG.

We board our craft and fly at the speed of light, 186,000 miles per second, arriving two years later. Assuming the distance between our planets hasn't changed, we'd arrive to find our friend has been waiting 30 years for us to arrive. After the GTG, we'd fly for another two years back to Earth at the speed of light. We would be 4 years older than when we left, but our children would be 60 years older.

That's the long way around. Take the shortcut, through the wormhole.

Did you hear that Oumuamua has arrived? Spacecraft, comet, who knows?