Ultimate fate of the universe!
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What is the ultimate fate of the universe?
peace
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What is the ultimate fate of the universe?
peace
Personally, I think it will end in a time-reversed Big Crunch. There is a beauty and a symmetry to this type of ending; the universe starts with the Big Bang, space expands, and the arrow of time goes into the future, and then the universe ends with the Big Crunch, space contracts, and the arrow of time goes into the past. If you look at science, there is a lot of symmetry in all its areas.
If you ask most scientists, they will probably tell you the Big Freeze, in which the universe would expand forever.
There is a great article on freeminds which describes a situation similar to the one I believe will happen. It's called the Physics of Judgement Day. You should read it, it's one of the best articles I have read on the site.
Anyway, what do you think?
peace
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There are many theories about this, but it is now generally accepted that the universe is still expanding and that expansion is getting faster. Because of the discovery of dark matter and dark energy, the total mass of the universe (and subsequently the total gravatational effect) would mean that the universe will carry on expanding until it eventually flies apart.
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There are many theories about this, but it is now generally accepted that the universe is still expanding and that expansion is getting faster. Because of the discovery of dark matter and dark energy, the total mass of the universe (and subsequently the total gravatational effect) would mean that the universe will carry on expanding until it eventually flies apart.
If the universe is expanding, does that mean that it is becoming cooler? If it becomes cooler would the absolute zero temperature decrease?
peace
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If the universe is expanding, does that mean that it is becoming cooler? If it becomes cooler would the absolute zero temperature decrease?
peace
Yes it is getting cooler but no, absolute zero is exactly what it says. It is the total absence of heat. 0 degrees Kelvin is the temperature where all activity ceases
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When we convert 0 kelvin to celcius the temperature is -273.15 degrees celcius so when the universe expands will the temperature in celcius become lower..?
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When we convert 0 kelvin to celcius the temperature is -273.15 degrees celcius so when the universe expands will the temperature in celcius become lower..?
No it will eventually reach 0 Kelvin (or -273C) but will not go any lower as all atomic activity ceases at that temperature
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There are many theories about this, but it is now generally accepted that the universe is still expanding and that expansion is getting faster. Because of the discovery of dark matter and dark energy, the total mass of the universe (and subsequently the total gravatational effect) would mean that the universe will carry on expanding until it eventually flies apart.
Certainly true. Dark energy is thought to be the force that counters gravity and not only is the universe expanding, it has accelerated expansion!
However, I still believe that the Big Crunch is how the universe will end. There's many theories Big Burst, Big Rip, Big Crunch, Big Freeze, Vacuum Mestability Event, and so on. It's interesting to study these theories, but the ultimate fate of the universe is up to God. Since God is The All Able and has control of everyone and everything, He could make the ending any way He wishes.
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Certainly true. Dark energy is thought to be the force that counters gravity and not only is the universe expanding, it has accelerated expansion!
However, I still believe that the Big Crunch is how the universe will end. There's many theories Big Burst, Big Rip, Big Crunch, Big Freeze, Vacuum Mestability Event, and so on. It's interesting to study these theories, but the ultimate fate of the universe is up to God. Since God is The All Able and has control of everyone and everything, He could make the ending any way He wishes.
The only good thing about it (or not) is none of us will still be here to see it
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The only good thing about it (or not) is none of us will still be here to see it
Yeah. It would be a horrific ordeal.
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Scients say that in 3 billion years the milky way would collide with andromeda galaxy...what do you think the outcome would be?
peace
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Scients say that in 3 billion years the milky way would collide with andromeda galaxy...what do you think the outcome would be?
peace
When they say collide, (if we collide) it is not like a collision of two cars. Even though a Galaxy looks almost solid with hundreds of millions of stars, it is 99.5% empty space (well space is not empty, but you get my meaning). As they collide, some stars will be thrown off by the massive opposing gravity, but most will eventually settle down to become a larger "Milky Andromeda" Galaxy. As we are about 50% along one of the spiral arms, it all depends if we are on the leading edge when we collide or on the backside. But either way we will not be here as the Sun would probably have started to expand by then as it uses up its fuel. The sun is more than 4.6 billion years old, its expected life is only about 8-9 billion years so it will be in its old age by then.
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So will the super massive black holes join together to form a larger one?
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Is milky way's black hole way smaller than amdromeda's and can sumone compare the size of these galaxies in light years..