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Oscillating universes have been discussed in philosophy from time immemorial and in mathematical cosmology for over one hundred years. Source
The ekpyrotic theory tries to beat inflation with bouncing higher-dimensional branes, no singularity, and a universe that has always existed. A tour of the prettiest version of the...
A new cosmic bounce model suggests that remnants from a pre-Big Bang Universe may still exist today. What if some of the Universe’s oldest objects are actually older than the Big B...
Penrose was right, then, that fashion, faith, and fantasy have led much of modern cosmology astray. He was more right than he knew. Source
The beginning of the universe doesn’t need to be singular, so doubts about a singularity don’t need to translate into doubts about a beginning. Source
This brings us, at last, to the remaining “cyclic” proposal, that of Roger Penrose, which is perhaps the most quixotic of all. Source
A Reconstructed Undergraduate Cosmology ThesisContinue reading on Medium »
Inflation is awkward, possibly not even a proper theory, and it has reigned over cosmology for forty years anyway. Here is what it claims, the flatness, horizon, and monopole probl...
Inside some very special black holes, there may be a boundary called a Cauchy horizon. Columnist Leah Crane explores the place beyond which physics breaks and anything is possible
Modern cosmology rests on a simple assumption: if we look on large enough scales, matter should be distributed evenly, with no preferred direction within the cosmos. This is known...
A look at why a cyclic, eternally repeating universe is such an appealing idea, and why the first serious attempt to build one, Richard Tolman's 1930s model of endless big bangs an...
Like the spin of a cosmic coin, a unique set of particle oscillations could ultimately decide the fate of the Universe’s biggest suns.Continue ReadingCategory: Physics,
A recent study in the journal Nature carries cosmos-quaking implications for our understanding of the universe—except a new preprint says that it’s wrong
The ekpyrotic universe is a beautiful idea that runs headlong into the data. From hand-waved singularities and assumed dark energy to the killer blow from Planck and WMAP measureme...
No quantum gravity. The wrong peak in the wave function. Boltzmann Babies. Roger Penrose pointing out that the arrow of time was smuggled in through the back door. The no-boundary...
Scientists say that they’ve just detected a massive cloud of gas some 3 billion lightyears in diameter, floating in space roughly 7 billion light years away from us. This is pretty...
As with life, the beginning of our universe entailed special conditions, not only of the laws of physics, but also of the arrangement of its component atoms. Source
Modern cosmology rests on a simple assumption: If we look on large enough scales, matter should be distributed evenly, with no preferred direction within the cosmos. This is known...
Often attributed to Albert Einstein, the quote by science-fiction writer Ray Cummings still serves as the most succinct explanation for one of the most fundamental features of our...
Your mother was wrong. Sorry.Continue ReadingCategory: Astronomy, ScienceTags: Cosm...
Stellar mass black holes may not be black holes at all. Instead, they could be a type of extremely compact star called a gravastar, which mimics a black hole. This is according to...
A new study claims that the universe isn’t entirely the same no matter where you look—a radical proposal
It's like a baby Big Bang. The post Scientists Propose That Entire Universes Can Form Inside Collapsing Stars appeared first on Futurism.
Galactic collisions are events of breathtaking proportions. The supermassive black holes (SMBHs) at their centers plunge into a chaotic orbital dance that eventually coalesce into...
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