How did the universe begin and how will it end?

Scientists think the universe began with a bang. A big bang. The Big Bang theory (no, not the TV show) is the most widely accepted theory for how the universe started. How it will end…that’s a “dark” mystery.

How did universe get started?

Our universe began with an explosion of space itself – the Big Bang. Starting from extremely high density and temperature, space expanded, the universe cooled, and the simplest elements formed.

How did the universe begin from nothing?

Virtually all astronomers now believe that the universe sprang forth in what is known as the “Big Bang” explosion, from a state of extraordinary compression and phenomenally high temperature in which forces such as gravity and electromagnetism were unified in a single, all-encompassing force.

Who created universe?

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.

How did the universe begin and how will it end? – Related Questions

What was there before the universe?

In the beginning, there was an infinitely dense, tiny ball of matter. Then, it all went bang, giving rise to the atoms, molecules, stars and galaxies we see today. Or at least, that’s what we’ve been told by physicists for the past several decades.

Is it possible to create matter from nothing?

We can turn light into subatomic particles, but even the best scientists can’t create something out of nothing.

Is it possible for something to come from nothing?

The most we can say with confidence at this stage is that physics has so far found no confirmed instances of something arising from nothing.

Can the universe create Itself?

“Because there is a law such as gravity, the universe can and will create itself from nothing. Spontaneous creation is the reason there is something rather than nothing, why the universe exists, why we exist,” Hawking writes. “It is not necessary to invoke God to light the blue touch paper and set the universe going.”

Who created God?

We ask, “If all things have a creator, then who created God?” Actually, only created things have a creator, so it’s improper to lump God with his creation. God has revealed himself to us in the Bible as having always existed. Atheists counter that there is no reason to assume the universe was created.

What is beyond the universe?

The trite answer is that both space and time were created at the big bang about 14 billion years ago, so there is nothing beyond the universe. However, much of the universe exists beyond the observable universe, which is maybe about 90 billion light years across.

How will the universe end?

In the unimaginably far future, cold stellar remnants known as black dwarfs will begin to explode in a spectacular series of supernovae, providing the final fireworks of all time. That’s the conclusion of a new study, which posits that the universe will experience one last hurrah before everything goes dark forever.

How many universes are there?

In a new study, Stanford physicists Andrei Linde and Vitaly Vanchurin have calculated the number of all possible universes, coming up with an answer of 10^10^16.

Can we travel to other universes?

Unfortunately, no. Scientists don’t think it’s possible to travel between universes, at least not yet. “Unless a whole lot of physics we know that’s pretty solidly established is wrong, you can’t travel to these multiverses,” Siegfried says.

Does space ever end?

No, they don’t believe there’s an end to space. However, we can only see a certain volume of all that’s out there. Since the universe is 13.8 billion years old, light from a galaxy more than 13.8 billion light-years away hasn’t had time to reach us yet, so we have no way of knowing such a galaxy exists.

What does space smell like?

sweet-smelling welding fumes’, ‘burning metal’, ‘a distinct odour of ozone, an acrid smell’, ‘walnuts and brake pads’, ‘gunpowder’ and even ‘burnt almond cookie’. Some astronauts have likened the smells of space to walnuts.

How cold is space?

Space is very, very cold. The baseline temperature of outer space is 2.7 kelvins (opens in new tab) — minus 454.81 degrees Fahrenheit, or minus 270.45 degrees Celsius — meaning it is barely above absolute zero, the point at which molecular motion stops. But this temperature is not constant throughout the solar system.

What is bigger than the universe?

No, the universe contains all solar systems, and galaxies.

Is the universe infinite?

The observable universe is finite in that it hasn’t existed forever. It extends 46 billion light years in every direction from us.

What is the biggest thing in existence?

The biggest single entity that scientists have identified in the universe is a supercluster of galaxies called the Hercules-Corona Borealis Great Wall. It’s so wide that light takes about 10 billion years to move across the entire structure. For perspective, the universe is only 13.8 billion years old.

Are there other universes?

There is not one universe—there is a multiverse. In Scientific American articles and books such as Brian Greene’s The Hidden Reality, leading scientists have spoken of a super-Copernican revolution.

Do we live in a parallel universe?

There are far more particles in the universe than 1,000, so the chances for another Earth are not in our favour. Unfortunately, we don’t know if these parallel universes exist. Or at least, we don’t at the moment. Physicists are trying to find ways to test these theories, but it is very difficult.

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