Two Earth like planets collided...

Link

I wonder if something like that could happen in our solar system...

It could! Or rather there's a 1% chance it could =p

In April 2008, it was announced that two simulations of long-term planetary movement, one at Paris Observatory and the other at University of California, Santa Cruzindicate a 1% chance that Mercury's orbit could be made unstable by Jupiter's gravitational pull sometime during the lifespan of the sun. Were this to happen, the simulations suggest a collision with Earth could be one of four possible outcomes (the others being colliding with the Sun, colliding with Venus, or being ejected from the solar system altogether).Wikipedia

Also I'm highly disappointed, I thought the url bbcode was [u rl="URL"]WORD[/u rl] (without the spaces of course) but apparently not. But anyhoo, here's a link to the wiki article -http://en.wikipedia.org/wiki/Risks_to_civilization,_humans_and_planet_Earth#Less_likely_cosmic_threats

Link

I wonder if something like that could happen in our solar system...

d51man

The only way that could happen is A) Some large gravity well be it a sun, brown giant (failed star, huge gas giant), black hole.. Which rip us or another planet out of orbit.

B) We get clipped by another solar system, or rogue planet..

Saying it as extremely extremely unlikely is a understatement..

We have a greater chance of getting wiped out by a gama ray burst tens of thousands of light yeras away.

Link

I wonder if something like that could happen in our solar system...

d51man

i think were on a collision course with andromeda

[QUOTE="d51man"]

Link

I wonder if something like that could happen in our solar system...

H8sMikeMoore

i think were on a collision course with andromeda

Yeah we are.. In the highly unlikely event we are still alive on Earth those billions of years later.. What would happen is A) We get thrown out of the galaxy as a solar system, to the void.. B) We get flung into the interior of the galaxy to get eaten by the super massive blackhole..

C) or we some how hit a objective due to the collision, though thats the most unlikely thing to happen.

[QUOTE="d51man"]

Link

I wonder if something like that could happen in our solar system...

H8sMikeMoore

i think were on a collision course with andromeda

our sun will die before Andromeda hits us, but then again, even if we move planets, we are still going to be hit.

[QUOTE="H8sMikeMoore"][QUOTE="d51man"]

Link

I wonder if something like that could happen in our solar system...

Gigagamer2

i think were on a collision course with andromeda

our sun will die before Andromeda hits us, but then again, even if we move planets, we are still going to be hit.

"hit" is bit of a misnomer... We may not even notice that it is happening if we didn't have devices to observe it.

QUOTE: "A light year is the distance light travels in a year, or about 6 trillion miles. So the observations are, in essence, looking back 300 years."

Isn't this all a bit 'last millenia'?

[QUOTE="H8sMikeMoore"][QUOTE="d51man"]

Link

I wonder if something like that could happen in our solar system...

Gigagamer2

i think were on a collision course with andromeda

our sun will die before Andromeda hits us, but then again, even if we move planets, we are still going to be hit.

[QUOTE="Gigagamer2"][QUOTE="H8sMikeMoore"][QUOTE="d51man"]

Link

I wonder if something like that could happen in our solar system...

sSubZerOo

i think were on a collision course with andromeda

our sun will die before Andromeda hits us, but then again, even if we move planets, we are still going to be hit.

"hit" is bit of a misnomer... We may not even notice that it is happening if we didn't have devices to observe it.

The only proper way we know it is happening is due to an observational effect called blue-shift, where and object moving fast enough towards you means that the wavelengths of light become compressed (sort of) meaning thy are shorter. This causes the object to appear more blue than the surrounding objects

and merger is probably a better word, but there will still be some destruction. Besides, if we were on Earth 500,000 years before the merger started, we would notice a rather large galaxy in the sky, although you wouldnt necessarily know where it was before.

EDIT: And we dont know what will happen to us when the merger takes place, the millions of stars and unique gravity effecting our orbit could fling us away or take us through a very dense patch of stars nearer the centre.

[QUOTE="sSubZerOo"][QUOTE="Gigagamer2"][QUOTE="H8sMikeMoore"][QUOTE="d51man"]

Link

I wonder if something like that could happen in our solar system...

Gigagamer2

i think were on a collision course with andromeda

our sun will die before Andromeda hits us, but then again, even if we move planets, we are still going to be hit.

"hit" is bit of a misnomer... We may not even notice that it is happening if we didn't have devices to observe it.

The only proper way we know it is happening is due to an observational effect called blue-shift, where and object moving fast enough towards you means that the wavelengths of light become compressed (sort of) meaning thy are shorter. This causes the object to appear more blue than the surrounding objects

and merger is probably a better word, but there will still be some destruction. Besides, if we were on Earth 500,000 years before the merger started, we would notice a rather large galaxy in the sky, although you wouldnt necessarily know where it was before.

EDIT: And we dont know what will happen to us when the merger takes place, the millions of stars and unique gravity effecting our orbit could fling us away or take us through a very dense patch of stars nearer the centre.

Thats not true, we may not notice it at all.. Inless we are on the correct side of the galaxy that is going to get hit.

Well, that's very interesting, but there's no way that could happen in our solar system. We'd know years in advance.deepdreamer256

Not neccesarly, a rogue black hole for instance that isn't feeding is virtually invisiable.. There could be one just outside our solar system for all we know right now, just out of range so we would notice its affects of gravity.. A black hole that isn't feeding doesn't give off any xrays so its basically undectable.

[QUOTE="deepdreamer256"]Well, that's very interesting, but there's no way that could happen in our solar system. We'd know years in advance.sSubZerOo

Not neccesarly, a rogue black hole for instance that isn't feeding is virtually invisiable.. There could be one just outside our solar system for all we know right now, just out of range so we would notice its affects of gravity.. A black hole that isn't feeding doesn't give off any xrays so its basically undectable.

[QUOTE="sSubZerOo"]

[QUOTE="deepdreamer256"]Well, that's very interesting, but there's no way that could happen in our solar system. We'd know years in advance.deepdreamer256

Not neccesarly, a rogue black hole for instance that isn't feeding is virtually invisiable.. There could be one just outside our solar system for all we know right now, just out of range so we would notice its affects of gravity.. A black hole that isn't feeding doesn't give off any xrays so its basically undectable.

Well of coruse not, I was just saying that theoretically we could not know in years in advance..

[QUOTE="deepdreamer256"][QUOTE="sSubZerOo"]

[QUOTE="deepdreamer256"]Well, that's very interesting, but there's no way that could happen in our solar system. We'd know years in advance.sSubZerOo

Not neccesarly, a rogue black hole for instance that isn't feeding is virtually invisiable.. There could be one just outside our solar system for all we know right now, just out of range so we would notice its affects of gravity.. A black hole that isn't feeding doesn't give off any xrays so its basically undectable.

Well of coruse not, I was just saying that theoretically we could not know in years in advance..

[QUOTE="sSubZerOo"][QUOTE="deepdreamer256"][QUOTE="sSubZerOo"]

[QUOTE="deepdreamer256"]Well, that's very interesting, but there's no way that could happen in our solar system. We'd know years in advance.deepdreamer256

Not neccesarly, a rogue black hole for instance that isn't feeding is virtually invisiable.. There could be one just outside our solar system for all we know right now, just out of range so we would notice its affects of gravity.. A black hole that isn't feeding doesn't give off any xrays so its basically undectable.

Well of coruse not, I was just saying that theoretically we could not know in years in advance..

How so? The solar system is going to exist billions of years, for all we know there could be a rogue blackhole clip us in that time.. Though extremely unlikely (an understatement) it is possible.

[QUOTE="Gigagamer2"][QUOTE="H8sMikeMoore"][QUOTE="d51man"]

Link

I wonder if something like that could happen in our solar system...

DeeJayInphinity

i think were on a collision course with andromeda

our sun will die before Andromeda hits us, but then again, even if we move planets, we are still going to be hit.

[QUOTE="DeeJayInphinity"][QUOTE="Gigagamer2"][QUOTE="H8sMikeMoore"][QUOTE="d51man"]

Link

I wonder if something like that could happen in our solar system...

Tuky06

i think were on a collision course with andromeda

our sun will die before Andromeda hits us, but then again, even if we move planets, we are still going to be hit.

What is predicted to happen when the two galaxies colide.. Is A) we are launched completely out of the galaxy due to gravity, or B) We are launched into the center of the new galaxy formed from Milky way and Andromeda.