Cookie-Power wrote What would happen if somewhere in deep space multiple big stars went supernova at once within a fairly close proximity to each other. Would this cause one giant supernova because of the forces uniting in close proximity or would they just fold back on themselves ?

Right I've got a lot to answer here, haven't checked this post in a long time.

So basically it would depend on where each star would be relative to each other. If we assume the "explosion" produces a wave like pattern, like dropping a ball into a still pool, there will be a uniform wave pattern protruding out of where the ball was dropped in. So if we're assuming the supernova produces a uniform wave pattern like this, then in some areas of the pattern then the forces will be cancelled out, if the waves from the other supernova were in direct anti-phase with the one's from the first supernova. However if they are in phase, the waves will join together and increase the amplitude of the wave.

So basically, I would assume that in some directions, the force of the supernova would be amplified, and in other directions, the forces would cancel out.

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MATTCHIEF wrote What would happen if we (Earth) got sucked into a black hole? Would we just go into a different dimension or would we completely disappear in an instant death?

No one really knows what happens when something does gets sucked into a black hole. There are a lot of different theories ranging from, like you said, going into a different dimension, to there being entire Universes within black holes.

However we, as people, would die long before we entered the black hole, due to a process known as spaghettification. (That's actually the technical term)

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MontyPython wrote Do you know what what my username is/means.
No using google. That be cheating.
Good luck. ;)

All I know is Monty Python was a comedian in, I believe the 1980s/1990s. Who did various sketches. I also want to say that he only had like 3 or 4 good sketches, and had like over 100 hours of rubbish. I'm not certain though aha.

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JustinsMods wrote I guess this is a pretty basic question... what is the formula for time travel to break the universes belt

This question doesn't even make sense? As of yet, there is no actual formula for time travel, only theory. But what do you mean to break the Universes Belt? The Universe does not have a belt?

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Deziii wrote According to the Big Bang theory, the universe is missing antimatter. Where is this antimatter, was it ever created in equal distribution to matter or what is a good theory to read up on it?

This is a pretty good question. But yes you are right. Basically, at the very beginning of the Universe, there were very nearly equal amounts of matter and anti matter. It is theorized that for every billion particles of anti matter, there were 1 more particles of matter. Whenever matter and anti matter are in close proximity, they are attracted to each other and when come into contact, annihilate each other in a very very energetic "explosion". So the early Universe was a very energetic sea of these particles annihilating each other.

What makes up our Universe today, are the survivors from this so called "war" from the early Universe. That one particle of matter in every billion are the one's that survived, which is what makes up our Universe today.

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WAD3 wrote Been looking for this post for hours man!

1. You said something to me the other day about how you should call it the great inflation or something rather than the big bang, why?

2. Your opinions on the multiverse theory

1. Yeah, well basically, it's simply just a bit of wrong terminology. I.e, the Big Bang implies an explosion, whereas in actual fact it was not an explosion. Explosions have a center, and there is no center to where the Big Bang happened. It's like inflating a balloon, there is no center to where it inflated from, it inflated everywhere.
A better way to describe the Big Bang, is an extremely rapid exponential expansion of the Universe, and so the Big/Great Inflation was decided a more fitting name.

2. It would take me a long time to fully explain the credibility of this theory, not appropriate for now, it would take a whole post! However I will say this, quite a lot of modern day physics relies on the theory of the Multiverse, and wouldn't work if this theory was wrong. I personally do believe in the Multiverse Theory.


I am going to double post, because this is getting too long for a single post.

NinetySix wrote what do you think about the proof of possible life on mars or at some point billions of years ago it could have been a full civilisation

Unlikely that they're has ever been a full civilisation on Mars, as that would require intelligent life, and there would be a lot of evidence, evidence we would have already found, if there had ever been civilised life on Mars.

However, some people believe there may still be microbial life on Mars today. As there is a seasonal mass release of methane from underground caverns on Mars, which some people believe may be as a result of microbial life. The source of this is yet unknown.

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Very wrote Do you think there is life on a planet very far in the universe where another kind of living species have been on their way to earth for thousands of years

( sorry if you don't understand I can't explain it but it's a serious question)

As for life on a planet somewhere in the Universe, yes, in my mind there is no doubt that there is other life, very possibly developed and intelligent life, elsewhere in the Universe. See the first question on my favourite questions part of this topic for details.

As for on their way to Earth, I'm not sure. I personally am quite a skeptic of UFO stories here on Earth. Don't get me wrong, I love the idea that other life has visited us. However for this to be a possibility, surpassing light speed travel would be required. For reference, there are theories of how to travel distances at faster light speed, without actually travelling faster than the speed of light, I won't get into that though.

I would like the idea that there is another intelligent civilisation on their way to Earth, as long as their intentions are peaceful

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BigWes wrote Do you think in the next 50 years we could travel to the nearest habitable planet or closest solar system to ours?

Habitable planets get named Earthlike planets. The closest Earthlike planet yet found is a planet only around 13 light years away. Which is a very short distance in astronomical terms! I can't remember the name off of the top of my head unfortunately. The Voyager 1 space probe is one of the fastest ever man made objects (used to be the fastest, I think it's been beaten however), and is travelling 17.4km per second. So, if my calculations are correct, if we started travelling to this nearest Earthlike planet, at the speed of Voyager 1, one of the fastest ever man made objects, it would still take us 17241 years to get there..

So, for us to be visiting other Earthlike planets in 50 years time, our space travel has to improve ten fold. We are currently developing technologies that would make our space travel much better, and much faster. However, in 50 years, I do not believe we will have developed technologies that are good enough to make travelling these huge distances in manageable periods of time, unlikely in my opinion.

However I do really hope in our life times technologies such as these will be available and will be used, for us to explore the deeper regions of our Galaxy. And I really hope that I have something to do with it. (I'm studying Physics & Astronomy at University)

Do you believe in the possibilities of multiple universes existing outside our own observable universe and how do you think they could exist eg. Multi verse theorems?

Personalize wrote Do you believe in the possibilities of multiple universes existing outside our own observable universe and how do you think they could exist eg. Multi verse theorems?

Yes I do believe in the multiverse theory. Mainly there is quite a lot of modern day physics that relies on the idea of the multiverse.

The way I usually describe to people, as an analogy for the multiverse, is to simply imagine a foam, of whatever type, with bubbles in it. Every bubble is it's own Universe, some are bigger than others, some pop, some don't. And the foam in between is the almost void between them, the space of nothingness, where there is literally nothing.

Some people say that there are an infinite amount of Universes, and if that were the case, then it would have the same effect as having parallel Universes. As there would be a Universe for any possible possibility that every could have happened.

This would also mean that there is another Universe where every single thing in the last 13.7 billion years of our Universe, happened in the exact same way in that Universe, and there is another me typing this at the same time as me, because every single possibility is happening.

I suppose this doesn't really answer your question that well, but yes I do believe in the Multiverse, and there is nothing mathematical to say that it's not possible.

Euler wrote

Personalize wrote Do you believe in the possibilities of multiple universes existing outside our own observable universe and how do you think they could exist eg. Multi verse theorems?

Yes I do believe in the multiverse theory. Mainly there is quite a lot of modern day physics that relies on the idea of the multiverse.

The way I usually describe to people, as an analogy for the multiverse, is to simply imagine a foam, of whatever type, with bubbles in it. Every bubble is it's own Universe, some are bigger than others, some pop, some don't. And the foam in between is the almost void between them, the space of nothingness, where there is literally nothing.

Some people say that there are an infinite amount of Universes, and if that were the case, then it would have the same effect as having parallel Universes. As there would be a Universe for any possible possibility that every could have happened.

This would also mean that there is another Universe where every single thing in the last 13.7 billion years of our Universe, happened in the exact same way in that Universe, and there is another me typing this at the same time as me, because every single possibility is happening.

I suppose this doesn't really answer your question that well, but yes I do believe in the Multiverse, and there is nothing mathematical to say that it's not possible.

Nice, I prefer the idea of there being more dimensions in the universe than just out own 3 dimensions like the (to us) inconceivable 4th 5th 6th... dimensions which contain possibilities of many of our own universes.

The possibilities of access to the other dimensions are so massive but don't think it would be possible (at least not in the near future) and where did you get 13.7 billion years "life span" from just out of interest?

Personalize wrote

Euler wrote

Personalize wrote Do you believe in the possibilities of multiple universes existing outside our own observable universe and how do you think they could exist eg. Multi verse theorems?

Yes I do believe in the multiverse theory. Mainly there is quite a lot of modern day physics that relies on the idea of the multiverse.

The way I usually describe to people, as an analogy for the multiverse, is to simply imagine a foam, of whatever type, with bubbles in it. Every bubble is it's own Universe, some are bigger than others, some pop, some don't. And the foam in between is the almost void between them, the space of nothingness, where there is literally nothing.

Some people say that there are an infinite amount of Universes, and if that were the case, then it would have the same effect as having parallel Universes. As there would be a Universe for any possible possibility that every could have happened.

This would also mean that there is another Universe where every single thing in the last 13.7 billion years of our Universe, happened in the exact same way in that Universe, and there is another me typing this at the same time as me, because every single possibility is happening.

I suppose this doesn't really answer your question that well, but yes I do believe in the Multiverse, and there is nothing mathematical to say that it's not possible.

Nice, I prefer the idea of there being more dimensions in the universe than just out own 3 dimensions like the (to us) inconceivable 4th 5th 6th... dimensions which contain possibilities of many of our own universes.

The possibilities of access to the other dimensions are so massive but don't think it would be possible (at least not in the near future) and where did you get 13.7 billion years "life span" from just out of interest?

There are more than 3 dimensions.

If String Theory is correct, then it has been mathematically proven there would be 10 dimensions.
If M Theory is correct, then 11 dimensions.
Other theories state that there are infinite dimensions, but they're less well accepted theories.

The 4th dimension is time, as it was theorized by Einstein that our Universe is made of a 4 dimensional fabric, which we call spacetime, as space and time are one and the same thing, and should not be referenced to as seperate entities.

However as far as I know, we cannot exist, or affect, influence or anything any other dimensions outside of our own, however dimensions are not really my specialty.

And as for the 13.7 billion years, that's how old our Universe is, well, 13.77 billion years to be more exact.

I hope this helped nonetheless.