The big bang is how astronomers explain the way the universe began . It is the idea that the universe began as just a single point, then expanded and stretched to grow as large as it is right now—and it is still stretching!
What is the Big Bang theory essay?
Essay On Big Bang Theory
The Big Bang Theory is the on-going explanation about how the universe began . The theory talks about the universe as we know it starting with a small originality, then expanding over the next 13.8 billion years to the universe we know of today.
How did the Big Bang start?
The universe began, scientists believe, with every speck of its energy jammed into a very tiny point . This extremely dense point exploded with unimaginable force, creating matter and propelling it outward to make the billions of galaxies of our vast universe. Astrophysicists dubbed this titanic explosion the Big Bang.
What is the Big Bang theory and what evidence supports it?
Two major scientific discoveries provide strong support for the Big Bang theory: • Hubble’s discovery in the 1920s of a relationship between a galaxy’s distance from Earth and its speed ; and • the discovery in the 1960s of cosmic microwave background radiation.
What is Big Bang theory in English?
The Big Bang is a scientific theory about how the universe started, and then made the stars and galaxies we see today . ... Then about 13.8 billion years ago, space expanded very quickly (thus the name “Big Bang”). This started the formation of atoms, which eventually led to the formation of stars and galaxies.
Does the universe have an end?
The end result is unknown ; a simple estimation would have all the matter and space-time in the universe collapse into a dimensionless singularity back into how the universe started with the Big Bang, but at these scales unknown quantum effects need to be considered (see Quantum gravity).
How long will the universe exist?
22 billion years in the future is the earliest possible end of the Universe in the Big Rip scenario, assuming a model of dark energy with w = −1.5. False vacuum decay may occur in 20 to 30 billion years if Higgs boson field is metastable.
What happens when you reach the end of space?
It will expand forever; the galaxies within groups and clusters will merge together to form a giant super-galaxy ; the individual super-galaxies will accelerate away from one another; the stars will all die or get sucked into supermassive black holes; and then the stellar corpses will get ejected while the black holes ...
Why is there no center of the universe?
Ever since the Big Bang 13.7 billion years ago, the universe has been expanding. But despite its name, the Big Bang wasn’t an explosion that burst outward from a central point of detonation. The universe started out extremely compact and tiny. ... And so, without any point of origin, the universe has no center.
What will happen in 100 trillion years?
And so, in about 100 trillion years from now, every star in the Universe, large and small, will be a black dwarf . An inert chunk of matter with the mass of a star, but at the background temperature of the Universe. So now we have a Universe with no stars, only cold black dwarfs. ... The Universe will be completely dark.
Does our galaxy have an end?
That’s accounting for the increase in star formation when the Milky Way and the Andromeda Galaxy collide around that time. ... Thus, some 19 billion years after the Big Bang, the Milky Way will begin its slow but inexorable decline — and, a trillion years from now, the end will come as its last star fades from visibility .
How old is our galaxy?
Astronomers believe that our own Milky Way galaxy is approximately 13.6 billion years old . The newest galaxy we know of formed only about 500 million years ago.
Will the universe be reborn?
The universe could bounce through its own demise and emerge unscathed. A new “big bounce” model shows how the universe could shrink to a point and grow again, using just the cosmic ingredients we know about now.
What is inside a black hole?
HOST PADI BOYD: While they may seem like a hole in the sky because they don’t produce light, a black hole is not empty, It’s actually a lot of matter condensed into a single point. This point is known as a singularity .
Can we reach the edge of the universe?
Unfortunately, since universe is technically expanding faster than the speed of light (due to the expansion of space between matter), it is theoretically impossible to ever reach the “edge” of the universe , since it will always be moving away faster than we could ever move towards it!
Does the universe has a center?
According to all current observations, there is no center to the universe . For a center point to exist, that point would have to somehow be special with respect to the universe as a whole.
