Such an idea can hardly be called a "hypothesis" any more; it is now quite certain that it IS expanding, and that the expansion gets faster and faster. Probably something like "accelerated expansion rate".
The expansion is related to the Big Bang.The fact that an environment suitable to sustain life will eventually die out is a natural consequence of the Second Law of Thermodynamics.
The "Big Crunch" idea was that the expansion would eventually stop and the universe would collapse. All evidence today says no way. The "Yo-Yo" says the universe repeatedly expand, collpses and then expands again of a roughly 70 billion year cycle. There is no evidence for this. The "Big Rip" says the universe will simply expand forever, with other galaxies gradually getting so far away that they fade in the distance, and then stars burn out and everything gets cold and dark forever.
Nobody Knows. Even if we travel at the speed of light we still would die before we got to the end of the universe. Everybody says the universe is expanding, but what is it expanding into?
He says that science is sufficient to explain the universe, and invoking a god is no longer necessarry.
No, there are two main options for the future of the universe. It can either stop expanding and begin to contract - resulting in "the big crunch". Or it can continue to expand for ever more - resulting in the big black-out (when other galaxies are so far away and their light so faint that the sky becomes dark. Which option is more likely seems to depend on the amount of dark matter and dark energy and nobody is quite sure how much of those exist.In any case, all this is academic for humankind. If they have not managed to destroy earth through their callous disregard before then, the sun is expected to become a red giant in around 4 billion years. At that stage its outer layers will contain or reach the earth's orbit. So, by then, the earth will really experience global warming!
The expansion is related to the Big Bang.The fact that an environment suitable to sustain life will eventually die out is a natural consequence of the Second Law of Thermodynamics.
The expansion is related to the Big Bang.The fact that an environment suitable to sustain life will eventually die out is a natural consequence of the Second Law of Thermodynamics.
KAMA
The Qur'an never says that Earth is the center of the universe.
The Universe, as unimaginably vast as it is, will eventually cease to exist, at least as we currently know it. Whether it will truly "end" and exactly what will happen to it, scientists still aren't sure. The Universe's fate will come billions, maybe even trillions of years from now, and the human race will not be around to witness it. There are currently three main competing hypotheses regarding the ultimate fate of the universe. As we gather more evidence, we will begin to see which event is most likely to occur.1) The Big Freeze, also known as Heat Death, is a scenario under which the universe continues to expand indefinitely at an ever increasing rate, as matter move away from each other and the gravitational attraction between them is weakened by the increasing distance. The expansion causes heat to disperse and the Universe will continue to get colder until it reaches absolute zero. Stars and galaxies will slowly die and the Universe will go dark. After that it is not known what will happen to space and time itself. The Big freese could occur under a flat or hyperbolic geometry, because such geometries are a necessary condition for a universe that expands forever. Of course, there is no "end" to the universe anymore should this scenario occur, in the usual sense, but nonetheless it could be considered as some ultimate fate to which the current universe may be susceptible.2) The Big Rip will only occur if the energy density of dark energy increases without limit over time. The Universe will expand so rapidly that everything will be "ripped" apart, from galaxies to stars to atoms. At one point the expansion rate of the Universe will reach infinity, and everything in the entire Universe, even space and time itself, will be completely destroyed. With the discovery that the Universe is actually expanding faster, the Big Rip is a probable scenario..3) The Big Crunch model is a symmetric view of the ultimate fate of the universe. Just as the Big Bang started a cosmological expansion, this theory postulates that the average density of the universe is enough to stop its expansion and begin to contract. The end result is unknown; a simple extrapolation would have all the matter and space-time in the universe collapse into a dimensionless singularity of unimaginable density. In a closed Universe this scenario could occur. But according to the most recent findings, scientists have determined that the Big Crunch is unlikely to happen.The Big Bounce, Oscillating Universe, or Cyclic Universe model is an extension of the Big Crunch hypothesis and says that the Universe undergoes an infinite series of Big Bangs and Big Crunches. This scenario allows the Big Bang to have been immediately preceded by the Big Crunch of a preceding universe. If this occurs repeatedly, we have what might be said to be a cyclic universe, and the Universe has existed for infinity. However, there are problems with this hypothesis regarding entropy and thermodynamics, and it has also been deemed unlikely.It should be noted that these theories are not mere idle speculation. Theoretical scientific exploration on this topic was made possible by General Relativity, which could be employed to describe the universe on the largest possible scale. Mathematically there are many solutions to the field equations of General Relativity, depending on how much matter there is in the universe, each implying a possible ultimate fate of it. Experimental evidence surrounding the expansion of the universe from Hubble and co. were also very helpful.See the links below for more details on each hypothesis
TEDTalks - 2006 Dean Ornish Says Your Genes Are Not Your Fate was released on: USA: February 2008
a hypothesis is a scientific word for prediction. An opinion is something someone says that is not a fact.
An open universe is a universe where all of the galaxies and stars and everything in the universe keep expanding with nothing stopping them. This theory says that the galaxies and stars will keep going further and further from the centre of the universe until everything dies off. This is the opposite of the closed universe theory where everything will expand, and then something will cause a turning point and everything will contract until everything there ever was will fit into a space the size of the dot at the end of this sentence. Then, possibly another 'Big Bang' will happen and start everything over again. :)
That when he dies he dies.
The "Big Crunch" idea was that the expansion would eventually stop and the universe would collapse. All evidence today says no way. The "Yo-Yo" says the universe repeatedly expand, collpses and then expands again of a roughly 70 billion year cycle. There is no evidence for this. The "Big Rip" says the universe will simply expand forever, with other galaxies gradually getting so far away that they fade in the distance, and then stars burn out and everything gets cold and dark forever.
Who says it was? We have no evidence whatsoever that there are other universes, or that the universe is somehow cyclic. In fact, it's quite likely that we can never have proof of that, since we'd have to somehow go outside the universe to check. Good luck with that. Einstein's theory explained the Big Bang. He said 'we are like insects living in a bubble and when the bubble expand, that is call the big bang.' But what happen before the Big Bang? that is when string theory comes in. Strings theory says that there are other universes out there, there is no rule law of physics that says 'multi universes cannot exists'. where the big bang came from? when the two universes collide, it can form another universe, when the universe spit in half, it becomes two universe. That is what physicists think 'that is the big bang.
Stars means astrology, fate, our predetermined destiny. Romeo believes that fate has got in the way of his happiness ("I am Fortune's Fool"), and the Prologue confirms this idea ("star-crossed lovers"). In saying "I defy you, stars" Romeo says that he will fight against what appears to be his predetermined fate.