Artist's rendition of the future Andromeda/Milky Way collision

[Volron]

Is this going to be anything like the collision code in AH.   

You owe me a coke...

 

[Skuzzy]

Is this going to be anything like the collision code in AH.  

What?  You hoping the other planet takes all the damage as we orbit away?

Pretty sure the reality is going to be the same for both planets, unlike AH.

[bacon8tr]

Pretty sure the reality is going to be the same for both planets, unlike AH.

QFT! 

[guncrasher]

I'll be happy to sell you 'galaxy collision' coverage for everything you own. 

proof that skuzzy does have a sense of humor  .


semp

[MrRiplEy[H]]

The collision may bring a black hole nearby earth. Just a curious thought - if the black hole starts to suck earth in it and the gravity accelerates the earth to huge speed, it would probably feel like it's going to take an eternity to be sucked in because time slows down as speed increases. So the outside world would see the earth and the sun get sucked in the black hole at huge increasing speed and people on earth would be like 'meh'.

Also, does anyone know what is the actual speed of earth, the sun and the galaxy? If and when time is relative to the speed, what is actual time and what is our actual speed related to the center of the universe? The question arises what happens to time in the dead center of universe if an object sits still, is the time much faster there than it is in post big bang objects which hurl away? Could the measured speeding up of the expansion of the universe be explained by us actually slowing down so that time seems to flow faster for us and therefor objects seem to distance faster? Inquiring minds want to know 

[Skuzzy]

The collision may bring a black hole nearby earth. Just a curious thought - if the black hole starts to suck earth in it and the gravity accelerates the earth to huge speed, it would probably feel like it's going to take an eternity to be sucked in because time slows down as speed increases. So the outside world would see the earth and the sun get sucked in the black hole at huge increasing speed and people on earth would be like 'meh'.

Also, does anyone know what is the actual speed of earth, the sun and the galaxy? If and when time is relative to the speed, what is actual time and what is our actual speed related to the center of the universe? The question arises what happens to time in the dead center of universe if an object sits still, is the time much faster there than it is in post big bang objects which hurl away? Could the measured speeding up of the expansion of the universe be explained by us actually slowing down so that time seems to flow faster for us and therefor objects seem to distance faster? Inquiring minds want to know  

Okay, here we go.

The speed of the Earth's orbit around the Sun: 18.64 miles/second (30 km/s)
Our Solar System is moving around the Milky Way Galaxy at about: 155.34 miles/second (250 km/s)
Our Milky Way Galaxy is moving in the local group at about : 186.41 miles/second (300 km/s)

That should cover it.  Just note all the speeds are constantly changing.  My speeds are going to be fast as it has been a while since I kept up with them.

Oh, our Solar System is moving upwards 90 degrees to the plane of the Milky Way as well.  About 4 miles/second.

Eventually, if all theories hold, we will stop and reverse directions picking up speed as we head to the next 'big bang'.

[ImADot]

Isn't time relative to the observer?

As a ship falls towards a black hole, time for those on the ship moves normally. But to an outside observer, as that ship moves closer to the black hole it seems to get slower and slower until it stops.

[NatCigg]

Okay, here we go.

The speed of the Earth's orbit around the Sun: 18.64 miles/second (30 km/s)
Our Solar System is moving around the Milky Way Galaxy at about: 155.34 miles/second (250 km/s)
Our Milky Way Galaxy is moving in the local group at about : 186.41 miles/second (300 km/s)

That should cover it.  Just note all the speeds are constantly changing.  My speeds are going to be fast as it has been a while since I kept up with them.

Oh, our Solar System is moving upwards 90 degrees to the plane of the Milky Way as well.  About 4 miles/second.

Eventually, if all theories hold, we will stop and reverse directions picking up speed as we head to the next 'big bang'.

Thought the latest science showed that space is expanding at an accelerating rate...........

[Skuzzy]

Thought the latest science showed that space is expanding at an accelerating rate...........

The expansion rate is a different speed set.

You have to remember, speed is always relative to something.  What I was tossing out is the speed of Earth, from various points (our Sun, the Milky Way, and the local group).

Expansion speed will depend on what points are being used to calculate the numbers.

Really is some neat stuff to track.

[warhed]

[Zoney]

Isn't time relative to the observer?

As a ship falls towards a black hole, time for those on the ship moves normally. But to an outside observer, as that ship moves closer to the black hole it seems to get slower and slower until it stops.

That is correct.

[MrRiplEy[H]]

Isn't time relative to the observer?

As a ship falls towards a black hole, time for those on the ship moves normally. But to an outside observer, as that ship moves closer to the black hole it seems to get slower and slower until it stops.

It should be exactly the opposite. If you travel at light speed and return back you have aged 2 weeks but outsiders have aged 20 years. So if you get sucked to event horizon and you speed up insanely, your time slows down and you would see outside events moving extremely fast. But the event horizon causes time to slow down also for sheer gravity not just speed.

[MrRiplEy[H]]

That is correct.

This can't be correct because if it was there would be a huge bunch of objects entering the event horizon of every black hole. Instead they get sucked in and get turned into hawkings radiation.

[Arlo]

Too high a deflection shot for a successful merge.

[NatCigg]

It should be exactly the opposite. If you travel at light speed and return back you have aged 2 weeks but outsiders have aged 20 years. So if you get sucked to event horizon and you speed up insanely, your time slows down and you would see outside events moving extremely fast. But the event horizon causes time to slow down also for sheer gravity not just speed.

how again are you time traveling? i have yet to figure out how speed effects time?   light speed + return at light speed = 2 weeks...so...2 weeks = 20 years?
How can mix perception and event horizons?  a human could never survive those extremes.