End of the world: SECOND Big Bang could RIP universe in HALF, scientist warns

Share it:

The Big Bang theory is the most accepted cosmological model used to describe how the universe expanded from a very high-density state. Ethan Siegel, a theoretical astrophysicist and author, has revealed how a second event, known as the “Big Rip” could see history repeat itself. He also suggested that dark energy could play a crucial role in the future of the universe.

 Big Bang





Dr. Robery Calwell, Dr. Marc Kamionkowski and Dr. Nevin Weinberg first put forward the idea of the "Big Rip” in a 2003 paper titled “Phantom Energy and Cosmic Doomsday”.

The model predicted that if the universe carries on expanding, it will eventually reach the point where all the forces that hold it together will be overcome by dark energy.

Dark energy is a mysterious force that makes up around 68 percent of the universe and it is believed that if it overwhelms gravitational, electromagnetic and nuclear forces, the universe will come apart.

An updated version of this theory, published in 2015, predicted this is likely to occur about 22 billion years from now.

 Big Bang





The Big Bang theory is the most accepted model for the start of our universe (Image: WIKI)

However, while many have warned against this being the end of life as we know it, Siegel has proposed the idea it could “recycle” our universe instead.

“If the Big Rip is correct, everything in the universe will be reduced to its most fundamental constituents, in some strange parallel to the earliest stages of the Big Bang,” he wrote in Forbes in September.

“This is a very different quark-gluon plasma from the one at the start of the Big Bang.

“For one, the Big Bang is characterised by a hot and dense state but the Big Rip will be an extremely cold and sparse one.

“For another, the Big Bang is characterised by all the matter and energy in the universe being compressed into a tiny volume of space, but in the Big Rip, it will be spread out over trillions of light years.”

 The Big Rip theory

The Big Rip theory explains the end of the world (Image: JEREMY TEAFORD, VANDERBIT UNIVERSITY)

Siegel, who is also a professor at Lewis & Clark College in Oregon, US, revealed how this could lead to a second Big Bang.

“It's possible that the dark energy that leads to the Big Rip, could recycle the universe," he added.

“If dark energy increases in strength, this really is energy inherent to the fabric of space itself and could repeat the early period in our universe's history where space expanded at an incredible rate: cosmic inflation.

“Inflation removes all the pre-existing matter and energy from the universe, leaving only the fabric of space itself behind.

“After a period of inflation, that energy somehow gets converted into particles, antiparticles and radiation, and leads to the Big Bang.”

Share it:

Astronomy

Big Bang

Big Rip

Post A Comment:

0 comments: