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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
Oscillating universes have been discussed in philosophy from time immemorial and in mathematical cosmology for over one hundred years. Source
About 25 years ago, astrophysicists noticed that the universe’s expansion is accelerating. To account for this observation, physicists came up with a new type of energy – called da...
Источник: Компьютерра - Журнал о науке и технологиях Американские математики представили математическое доказательство того, что текущая модель расширяющейся Вселенной, основанная...
Run Hawking's machinery and out pops something startling: the most likely universe looks an awful lot like ours, complete with inflation, a low-entropy beginning, and an arrow of t...
Mathematicians are challenging the idea that dark energy is responsible for the accelerating expansion of the universe. In a new paper published in Proceedings of the Royal Society...
For nearly thirty years, dark energy has been cosmology's great get out of jail free card, the invisible, mysterious force we invented to explain why the universe is expanding fast...
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...
Hawking faced a question with no answer hiding behind it. The best boundary condition for the universe, he decided, was that there was no boundary at all. To make that statement in...
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...
Penrose was right, then, that fashion, faith, and fantasy have led much of modern cosmology astray. He was more right than he knew. Source
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...
Scientists have uncovered a surprising connection between quantum gravity and an exotic quantum state of matter that could explain why the universe isn’t expanding wildly fast. The...
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...
A Reconstructed Undergraduate Cosmology ThesisContinue reading on Medium »
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...
New mathematical research suggests dark energy may not be needed to explain the accelerating expansion of the universe, challenging the foundations of the standard cosmological mod...
Last year, a study sent a quiet tremor through the field of cosmology. A team of researchers claimed that the universe's expansion might be slowing down, not speeding up, suggestin...
In 2011, three physicists won the Nobel Prize for showing that the expansion of the universe speeds up, which is usually attributed to aa mysterious type of energy called “dark ene...
Когда Шарлотта Мейсон размышляет о космических загадках, она любит рисовать. «Я довольно визуальный человек, — говорит она. — Обычно я делаю много рисунков, пытаясь разобраться в ч...
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
Our universe is known to be remarkably homogeneous and isotropic. This essentially means that matter is distributed evenly throughout the universe and that it looks almost the same...
The prime example of all difficulties for new theories in physics relates to the ultimate origin of everything. Source
Assistant Professor Haocun Yu is something of a scientific diplomat. In a recent Physical Review Letters (PRL) publication, she and colleagues show how a tabletop experiment can br...
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