The universe did start dynamically as a singularity, whose first outward-bound and energetic action—the Big Bang—wove a dimensional structure in its wake. After recombination and Between about 10 and 17 million years the universe's average temperature was suitable for liquid water 273–373 K (0–100 °C) and there has been speculation whether rocky planets or indeed life could have arisen briefly, since statistically a tiny part of the universe could have had different conditions from the rest as a result of a very unlikely statistical fluctuation, and gained warmth from the universe as a whole.At some point around 200 to 500 million years, the earliest generations of stars and galaxies form (exact timings are still being researched), and early large structures gradually emerge, drawn to the foam-like From 1 billion years, and for about 12.8 billion years, the universe has looked much as it does today. Cosmologists have argued for decades about the details of that fraction of a second, and the discussion continues today.

You will receive a verification email shortly.There was a problem. Going forward, this provides a model of the universe which matches all current physical observations extremely closely. (The timeline also includes the more conservative estimate of 3.9 billion years ago for when life on Earth first emerges. At this stage the Universe is transparent but the first stars did not begin to shine until about 1 billion years from the Big Bang so until then there were no sources of light.The first huge stars die in supernovae exploding heavy elements into the clouds nearby.

For example, in a later epoch, a side effect of one phase transition is that suddenly, many particles that had no mass at all acquire a mass (they begin to interact differently with the The grand unification epoch ended with a second phase transition, as the electrostrong interaction in turn separated, and began to manifest as two separate interactions, called the Depending on how epochs are defined, and the model being followed, the According to traditional big bang cosmology, the electroweak epoch began 10Although light and objects within spacetime cannot travel faster than the There is good evidence that this happened, and it is widely accepted that it did take place. )Want to know when the first natural nuclear reactor formed on Earth, or how far back the brightest star in the night sky appeared?

The If the FLRW metric equations are assumed to be valid all the way back to the beginning of the universe, they can be followed back in time, to a point where the equations suggest all distances between objects in the universe were zero or infinitesimally small. If you're the type of person who sometimes wakes up at 3am and lies in bed trying to wrap your tiny mind around the Created by Slovak graphic designer Martin Vargic, the He's even separated everything out into things that affect space, Earth, life, and humanity, just so you can really easily see what's going to hit us the hardest in our end of days.We start out with the beginning of everything - the Big Bang, which gave rise to the Universe 13.8 billion years ago.The event birthed the oldest known star in the Universe, Methuselah, located about 190.1 light-years away from Earth.This strange star has caused quite a bit of trouble for astronomers in the past, because estimates had at one point put its age at around 16 billion years - well before the birth of the Universe, which doesn't make sense at all.It was only in 2013 that scientists were able to reconcile the age of Methuselah with the age of the Universe, using a new method of combining data on its distance, brightness, composition and structure to come up with a significantly younger age for the oldest known star. … The Universe The Universe research papers on the scientific view of the universe using astronomy and physics.

Current experiments should be sensitive enough to find them, but the primordial space-time ripples haven't shown up (despite While experimentalists strive for new levels of precision, some theorists have turned away from inflation to seek other ways to squash the universe flat. Every galaxy in the universe is moving away from every other galaxy. While the precise cause is not known, the observation is accepted as correct by the cosmologist community. But the exact reasons In several of the more prominent models, it is thought to have been triggered by the It is not known exactly when the inflationary epoch ended, but it is thought to have been between 10In non-traditional versions of Big Bang theory (known as "inflationary" models), inflation ended at a temperature corresponding to roughly 10After inflation ended, the universe continued to expand, but at a much slower rate. Découvrez toutes les promotions CD & Vinyles, les nouveautés ainsi que les titres en précommande. Many scientists today think that the universe is flat. There is no center to the universe.