Traveling through black holes … an expert explains what happens to the human body

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Dubai, United Arab Emirates (CNN) – Due to the mystery surrounding them, black holes have always attracted the interest of many people, whether they are scientific experts or ordinary people.

Sure, the idea of ​​traveling through black holes has occurred to your mind a few times, but is it possible? Here’s what this expert thinks.

She was mocked at first

Is traveling through black holes possible? An expert demonstrates the necessary challenges and conditions
An image of a black hole captured by a network of telescopes called the Event Horizon Telescope.
Credit: National Science Foundation

In the beginning, black holes were mocked and considered to be purely theoretical fiction in the field of physics.

However, black holes quickly became the focus of science, and excited the audience as well, as soon as observations and astronomical measurements began to reveal their existence, and their importance for all structures in our universe, according to what was stated by Assistant Professor of Physics at Grenell College in the United States, Liu. Rodriguez, in an interview with CNN in Arabic.

Is travel through black holes possible? An expert demonstrates the necessary challenges and conditions
An image from the Sloan Digital Sky Survey shows the galaxy J0437 + 2456, with a huge black hole in the center.
Credit: Sloan Digital Sky Survey

Many types of black holes exist, and they can be charged and decay, while some include elements of cosmic expansion and contraction.

However, when looking at the night sky, we will often be able to see one type, i.e. spinning black holes.

Holes turn into “spaghetti”

Is traveling through black holes possible? An expert demonstrates the necessary challenges and conditions
New measurements of the black hole at the center of the “Holm 15A” galaxy reveal that it is 40 billion times larger than our sun. This makes it the heaviest known black hole to be directly measured.
Credit: Matthias Kluge / USM / MPE

The universe is governed by specific laws related to conservation of energy, mass, and momentum, which “significantly restrict the ability to travel safely through a black hole,” said Rodriguez, who mainly focuses on studying black holes.

Near the black hole horizon, the side that poses the greatest challenge will be the differential tidal forces.

Is traveling through black holes possible? An expert demonstrates the necessary challenges and conditions
The supermassive black hole at the center of the “M87” galaxy.
Credit: European Southern Observatory

“Small black holes, or stellar black holes, will have enormous tidal forces,” Rodriguez said.

This means that a person who falls into a black hole with their feet first will experience a dramatically large difference in gravity between the black hole and their head, compared to their feet.

Is traveling through black holes possible? An expert demonstrates the necessary challenges and conditions
Imaginary image of an artist showing a black hole about to engulf a neutron star.
Credit: Carl Knox/Ozgrav Arc Center of Excellence

“This could cause a person to stretch out into the shape of long noodles,” Rodriguez said, referring to what is known as the “spaghettification”.

Besides, most black holes are close to stars, and other materials, and this means that they feed on these materials, and the accumulated material may form a very hot cumulative disk.

The area around the black hole is very volatile, and it is likely not suitable for human presence.

Can we communicate with someone who has traveled through a black hole?

Is traveling through black holes possible? An expert demonstrates the necessary challenges and conditions
This image shows the galaxy “NGC 4889”, which is located in the group of “Koma” galaxies. And there is a supermassive black hole in the center of the galaxy.
Credit: NASA/ESA

And even if someone did manage to travel through a black hole, we probably wouldn’t know that.

A black hole is defined as a region of “space-time” (space-time) in which the force of gravity becomes so great that light cannot escape from it.

And when we consider that all our means of remote astronomical communication rely on some form of light (mostly radio waves), our ability to communicate with anyone beyond the horizon of a black hole would be pointless.

In order for a person to survive traveling through a black hole, we will need a fully formulated theory of how to fully incorporate gravity on the quantum scale, Rodriguez said, and that will require humans to comprehensively understand quantum gravity.

Alongside this, we will also need to identify a black hole large enough to allow mitigation of the tidal forces near the horizon, and in a way that we can be isolated from the accumulating matter.





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