A look at various theories explaining the origin of the known universe

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These theorists can even account for the cosmic background radiation: After all, no one was around when the universe began, so who can say what really happened?

So this makes the theory of eternal inflation an extension of the big bang itself, at least to some extent. Special creation or supernatural intervention is not subjectable to meaningful tests, which require predicting plausible results and then checking these results through observation and experimentation.

Proteins consist of chains of subunits known as amino acids.

The Origin, History, Evolution & Future of the Universe

If the source of sound or light is moving toward you, you perceive the waves as rising in frequency: This theory states that the Big Bang never happened, and that the universe is crisscrossed by gigantic electric currents and huge magnetic fields.

Our universe is both ancient and vast, and expanding out farther and faster every day. The National Academies Press. In steady-state, the non-stop creation of matter causes the density of matter present in the expanding universe to remain unchanged.

The sequence of nucleotides in DNA and RNA therefore determines the sequence of amino acids in proteins; this is a central mechanism in all of biology. Sure the big bang was and still the best explanation that anyone can provide about the ultimate past of the universe, but theories like steady-state universe also drew attention from many.

Rather, matter is continuously created via a succession of "Little Bangs," perhaps associated with mysterious quasars. When the team simulated the collapse of a 4D star, they discovered that the ejected material from that star is likely to form a 3D membrane around that 3D event horizon and expand slowly.

That is, the distribution of matter, on a large scale, should be roughly the same wherever you look. Theory of Eternal Inflation Again, the big bang is the explosion, which kick-started the cosmic inflation. The idea of steady-state was first propounded inby three cosmologists Hermann Bondi, Fred Hoyle and Thomas Gold.

For example, radio messages sent from Earth may never reach some regions of space, even if the Universe were to exist forever: Observable universe and Observational cosmology The size of the Universe is somewhat difficult to define. Firm believers of this theory generally assume that the universe is actually infinite in age and size.

The Origin of the Universe

But light from others was shifted far past red into the infrared, even down into microwaves. The remaining two interactions, the weak and strong nuclear forcesdecline very rapidly with distance; their effects are confined mainly to sub-atomic length scales. During the Planck epoch, all types of matter and all types of energy were concentrated into a dense state, and gravity - currently the weakest by far of the four known forces - is believed to have been as strong as the other fundamental forces, and all the forces may have been unified.

Ordinary matter, attracted to these by gravityformed large gas clouds and eventually, stars and galaxies, where the dark matter was most dense, and voids where it was least dense.

After around - million years,[ citation needed ] the first stars formed, known as Population III stars. If the source is moving away from you, the waves drop in frequency: The recent speculation includes the possibility that the first living cells might have arisen on Mars, seeding Earth via the many meteorites that are known to travel from Mars to our planet.

Astronomers can figure out how old a galaxy or star is by measuring its distance from Earth. Globular clusters occur in a faint halo surrounding the center of the Galaxy, with each cluster containing from a hundred thousand to a million stars. The implication of these findings is that the universe is expanding.

With enough mass, the universe will eventually succumb to the overpowering force of gravity and collapse again into a single point—a theory often called the Big Crunch.

This marked the end of the radiation-dominated era and the start of the matter-dominated era. See images, illustrations and diagrams of the universe from now back to the Big Bang. A Blueprint for the Universe The universe is filled with stars, galaxies, planets and more, plus a veritable buffet of invisible stuff like dark matter astronomers have yet to see.

But wait, there is more. This initial period of inflation is believed to explain why space appears to be very flat, and much larger than light could travel since the start of the universe.

The history of science shows that seemingly intractable problems like this one may become amenable to solution later, as a result of advances in theory, instrumentation, or the discovery of new facts.

By using knowledge of the natural world to predict the consequences of our actions, science makes it possible to solve problems and create opportunities using technology.

Plasma Universe Theory Image Courtesy: Naturally, continuous creation of matter from empty space has met with criticism. These elementary particles associated stably into ever larger combinations, including stable protons and neutronswhich then formed more complex atomic nuclei through nuclear fusion.

The arguments of creationists are not driven by evidence that can be observed in the natural world. The oldest known rocks on Earth occur in northwestern Canada 3.

But quasars exist only at these great distances—none are found nearer.What are the various theories that aim to explain the origin of the universe? Update Cancel. What are the other theories aside from big bang and steady state theory explaining the origin of the universe?

What are the theories of punishment? Ask New Question. Still have a question? Ask your own! Because of its success in explaining a wide variety of experimental results However, this equilibrium is unstable: because the Universe is known to be inhomogeneous on smaller scales, R must change (cosmologies) and its origin (cosmogonies).

Theories of an impersonal Universe governed by physical laws were first proposed by the. The currently popular theory of the origin of the universe held various rates of speed. According to a basic assumption called the cosmological principle, the stars would show an identical expansion explaining an ultimate origin and a final destiny for the universe.

However, recent data reveals that there is simply not enough. Since the early part of the s, one explanation of the origin and fate of the universe, the Big Bang theory, has dominated the discussion.

Proponents of the Big Bang maintain that, between 13 billion and 15 billion years ago, all the matter and energy in the known cosmos was crammed into a tiny, compact point. Creationist Views of the Origin of the Universe, Earth, and Life Many religious persons, including many scientists, hold that God created the universe and the various processes driving physical and biological evolution and that these processes then resulted in the creation of galaxies, our solar system, and life on Earth.

Theories explaining the origin of the universe. 1. In the Bible, there was time when the world did not exist. Only God existed.

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A look at various theories explaining the origin of the known universe
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