How can you create a universe from nothing? Well if you calculate the total matter of the universe it is positive. If you calculate the total energy of the universe it is negative because of gravity. Gravity has negative energy. When you add the two together what do you get? Zero, so it takes no energy to create a universe. Universes are for free. A universe is a free lunch.
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The idea that our Universe is a giant cosmic computer pervades modern science. Now one physicists says this assumption is dangerously wrong
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Solving the mysteries of the universe is usually about finding the best answer to a question.
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Time might feel like it is running away from us as the pace of life increases but according to scientists, the future will stop completely. More about TIME: http://www.scoop.it/t/science-news?tag=time Full Article: http://goo.gl/14IE7 Via Jessica Call
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From
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The universe is a marvelously complex place, filled with galaxies and larger-scale structures that have evolved over its 13.7-billion-year history. Those began as small perturbations of matter that grew over time, like ripples in a pond, as the universe expanded. By observing the large-scale cosmic wrinkles now, we can learn about the initial conditions of the universe. But is now really the best time to look, or would we get better information billions of years into the future - or the past?
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Stem-cell guru Robert Lanza presents a radical new view of the universe and everything in it. Articles about COSMOLOGY: http://www.scoop.it/t/science-news?tag=cosmology
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The distribution of matter across the cosmos is most easily explained by inflation, a theory that suggests our universe inflated rapidly — just like a balloon — shortly after its birth, according to new research.
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Indeed, the Universe, as science has revealed it, bears little resemblance to the description of Divine creation in various Scriptures.
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If there was a start to the universe, that means we have to explain how something just appeared from nothing...
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We can’t see it, we can’t feel it, we can’t even interact with it… but dark matter may very well be one of the most fundamental physical components of our Universe.
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Day to day life has made us all comfortable with 3 dimensions; we constantly interact with objects that have height, width, and depth. ... Via FutureCast, Wildcat2030
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In his new book, “A Universe from Nothing: Why There is Something Rather than Nothing,” Arizona State University professor Lawrence M. Krauss explains how recent revolutions in our understanding of physics and cosmology allow modern science to address the question of why there is something rather than nothing, and more importantly, why this is a scientific question rather than a philosophical or theological one.
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We are appropriating for our own consumption a large and increasing fraction of the biological productivity of the entire earth. This is why we need to figure out quickly how to transition out of the current period of worldwide human inflationary growth as gently and justly as possible. Cosmology can help – by providing a model for this seemingly insurmountable task.
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Following the Big Bang, the universe consisted only of nonmagnetic elements and particles. Now, a new mechanism has been discovered for the magnetisation of the universe even before the emergence of the first stars.
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Our universe may exist inside a black hole. This may sound strange, but it could actually be the best explanation of how the universe began, and what we observe today. It’s a theory that has been explored over the past few decades by a small group of physicists including myself.
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Welcome back to yet another installment of the question of whether we’re all just products of an advanced simulation that created an entire universe, but this time, instead of plunging deep into the lore of the Matrix with Moore’s Law hijinks and philosophy, we’ll be hunting for physical proof that the universe is actually a simulation in the realm of quantum chromodynamics
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To make things clear - Maldacena's universe is not like the one we actually live in! It's a model, a toy universe, which comes complete with its own physics. It's a hologram because all the physical goings-on inside it can be described by a physical theory that's only defined on the boundary. What's more, it's a universe in which the gravity/quantum conundrum has been resolved completely: the boundary theory is purely quantum, it contains no gravity, but a being living in the interior will still experience gravity. Gravity in this universe is part of the holographic illusion. More on COSMOLOGY: http://www.scoop.it/t/science-news?tag=cosmology Via Dr. Stefan Gruenwald, Pradeep Kr. Banerjee
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From
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Our universe may exist inside a black hole. This may sound strange, but it could actually be the best explanation of how the universe began, and what we observe today. More on BLACK HOLES: http://www.scoop.it/t/science-news?tag=Black%20Hole
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Cosmologists use the mathematical properties of eternity to show that although universe may last forever, it must have had a beginning... Articles about MATHEMATICS: http://www.scoop.it/t/science-news?tag=mathematics
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The notion of multiple universes is one that cosmologists like to theorize about but generally don’t relish proving, mainly because doing so would be very difficult. But a team of researchers that showed a few years ago how matter might travel between our universe and others now think they ought to be able to observe this phenomenon in action using existing technology, lending credence to the multiverse theory. All they need is a neutron bottle, some neutrons, and a year.
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On the big questions science cannot (yet?) answer, a new crop of philosophers are trying to provide answers.
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Science fiction, science fact: reports from the frontiers of physics What is time? What is space? How did the Universe start? Does infinity exist? Join Plus and FQXi on a journey exploring these and many more questions on the frontiers of physics. What do you think is science fiction and what is science fact? Find out more about scientific developments in these areas, ask your own questions and debate the answers!
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Extreme magnetic fields could create superlens just after the Big Bang...
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Tsukuba, Japan (SPX) Dec 23, 2011 -
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Astronomers have known for years that something seems to be pulling our Milky Way and tens of thousands of other galaxies toward itself at a breakneck 22 million kilometers (14 million miles) per hour. But they couldn’t pinpoint exactly what or where it is. A huge volume of space that includes the Milky Way and super-clusters of galaxies is flowing towards a mysterious, gigantic unseen mass named mass astronomers have dubbed "The Great Attractor," some 250 million light years from our Solar System.
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