Some of the most bizarre and astounding structures in the cosmos are wormholes.
Scientists now speculate that our own galaxy may have one of these time and space tunnels.
A wormhole is a structure where gravity is so powerful that it bends spacetime itself, much like a black hole.
The distinction is that a wormhole creates a hole right through the universe’s surface by bending spacetime to connect two distinct places.
Like in the science fiction movie Interstellar, you could travel between these sites in a matter of seconds by travelling through the wormhole, even if they were separated by light-years or even time.
Scientists believe that a real wormhole would quite instantaneously collapse in on itself, despite the fact that they are physically feasible.
However, some scientists now assert that the enigmatic material known as dark matter may be able to form wormholes and perhaps maintain them open long enough for travellers to pass through.
If they are correct, the Milky Way’s core may conceal a huge tunnel leading to another region of the cosmos.
According to scientists, dark matter may have created a wormhole in the Milky Way’s center, linking our galaxy to a far-off region of the cosmos (artist’s impression).
Wormholes can be compared to a “type of tunnel,” according to co-author Dr. Saibal Ray, an astronomer from GLA University in India.
According to Dr. Ray, “a wormhole is nothing more than a passage from one point to another; it’s like a tunnel between two manhole covers; one acts as the entry point and one as the exit point.”
The throat, a tunnel that connects the two mouths of a wormhole, may possibly extend the full length of the universe.
One mouth would be a “white hole” where everything would emerge, and the other would be a black hole where matter and light are drawn in by gravity.
If a wormhole’s throat is sufficiently stable and broad to allow an object to pass through, scientists refer to it as “traversable.”
Anything that fell in at one side would, in theory, appear at the other side relatively immediately.
Scientists claim that we may use this wormhole to travel beyond our own galaxy and even through time, much as in Christopher Nolan’s science fiction blockbuster Interstellar.
A hypothetical material known as “dark matter” is thought to comprise about 27% of the cosmos.
The mysterious substance has never been directly examined by scientists and is invisible as it does not reflect light.
Because of its gravitational effects on known matter, astronomers are aware that it exists.
According to the European Space Agency, “If you shine a torch in a completely dark room, you will only see what the torch illuminates, but that does not mean the room around you does not exist.” In a similar vein, “we know dark matter exists but have never observed it directly.”
The substance is believed to be the gravitational “glue” that binds galaxies together.
Despite their strange name, these structures are made possible by Einstein’s theory of general relativity, which holds that space and time are not flat, even surfaces.
Instead, large objects like planets, suns, and even entire galaxies are continuously stretching and twisting the bumpy, uneven universe in which we inhabit.
Simply put, a wormhole is one way that Einstein’s physics equations permit space-time to be twisted.
The main issue is that most physicists don’t believe wormholes can remain in reality for longer than a brief moment.
Cosmologist Professor Dejan Stojkovic of the University at Buffalo, who was not involved in the study, told the Daily Mail: “Wormholes are generally unstable. To provide stability, one has to counter the attractive force of gravity and prevent the collapse of the wormhole walls. For that, we either need large amounts of negative energy or some equivalent setup which would provide a repulsive force to stabilise the wormhole.”
The enigmatic material that makes up 27% of the cosmos is called dark matter. Scientists have examined its impact on the dispersion of galaxies in the “cosmic web” (shown), despite the fact that it cannot be spotted.
Although the existence of negative energy is unknown, some researchers believe dark matter may hold the key.
About 27% of the mass of the universe is made up of dark matter, an enigmatic and invisible element.
Because of the way its gravitational pull shapes galaxies and other huge structures in the universe, astronomers believe it must exist even if it cannot be seen.
Astronomers believe that a “dark matter halo” of invisible material extends up to one million light-years from the galactic core, even within the Milky Way.
Dr. Ray and his colleagues believe that the special characteristics of dark matter may be sufficient to produce a stable, traversable wormhole.
According to Dr. Ray, “Dark matter is hypothesised to lead to wormhole formation because its unique density and gravitational collapse in extreme environments can alter spacetime topology.”
The majority of hypotheses suggest that dark matter is an improbable source of stable wormholes since it draws objects together with gravity.
Nonetheless, some “exotic” hypotheses regarding the nature of dark matter imply that it may possess characteristics that would cause a wormhole’s neck to open.
Scientists believe that the “dark matter halo” in our galaxy might develop and keep a wormhole’s “throat” open. A gamma-ray emission halo that may indicate the location of dark matter is shown.
Even at speeds close to the speed of light, it may take several human lifetimes to reach far-off stars and galaxies.
Wormholes are galactic “shortcuts” that humans could exploit to get there more quickly.
Strong gravity causes spacetime to bend over on itself, creating wormholes.
A wormhole is a bridge created when two “sheets” of spacetime become trapped together.
We could traverse billions of light-years in a matter of seconds by passing through this wormhole.
According to Dr. Ray, “standard dark matter holds galaxies together, but certain models suggest its “condensate characteristics” can trigger the structural, traversable “throat” of a wormhole during collapse.”
This increases the likelihood of wormholes in any spiral galaxy with sufficient dark matter, such as the Milky Way, according to the researchers.
“We have theoretically shown that in the case of the Milky Way galaxy, in the central part as well as at the edge, a wormhole does exist,” Dr. Ray continues.
In addition to the likelihood that a wormhole exists in our galaxy, if it does, it will be incredibly large.
The wormhole in the Milky Way’s center would be 32,600 light-years across, according to the researchers’ calculations.
Scientists claim that technology might theoretically be utilised to travel great distances through space, much like in the film Interstellar.
“We can use the shortcut that the wormhole provides if its throat is big enough to fit a human or a spaceship,” explains Professor Stojkovic.
According to some experts, humanity might be able to use natural wormholes in the future to travel enormous distances throughout the cosmos, much like in the movie Interstellar.
This is a really audacious assertion, but it is not wholly implausible from a physical standpoint.
Even though the particular computations would need more research, Professor Stojkovic says he believes the paper’s overall premise to be compelling.
According to Professor Stojkovic, “the authors’ Hernquist dark matter profile may violate energy conditions, particularly the Null Energy Condition (NEC).”
According to general relativity, matter’s energy density cannot be negative.
Nonetheless, it is widely believed that breaking the NEC is a necessary—and even sufficient—condition for maintaining a traversable wormhole.
The so-called “exotic matter” required to keep the wormhole throat from collapsing would thus be supplied by the galaxy’s copious dark matter.
According to Professor Stojkovic, “Nature, whose building power is much superior to human one, always finds a way to build something which is described by solutions of legitimate theories like General Relativity.”
“There may already be wormholes created by nature, and we might exploit them in the future.”
But according to experts, the dark matter halo of the galaxy (shown) might either collapse a wormhole or not have enough energy to keep one open.
But not everyone finds Dr. Ray’s wormhole hypotheses convincing.
“There is no evidence that dark matter can act as exotic matter,” according to Dr. Andreea Font, an astronomer and Milky Way formation specialist from Liverpool John Moores University.
According to Dr. Font, theories that contend dark matter does anything other than attract stuff with gravity are “well outside established physics.”
The main issue with this idea, however, is that its mathematical consequences just don’t match our understanding of Milky Way physics.
The wormhole that this theory predicts would be much larger than any wormhole that has been realistically simulated, measuring 32,600 light-years across.
According to Dr. Font, “a quick calculation shows that a wormhole of this size would require 100,000 more mass-energy than the entire galaxy, and crucially, in the form of negative energy.” In other words, “to keep open a wormhole of the size of the Galactic core, it would require the energy of a cluster of thousands of galaxies, made of exotic matter.”
This indicates that while dark matter-fueled wormholes are theoretically possible, their presence in our galactic neighbourhood is much less likely.
Einstein, Albert
Albert Einstein established the theory of special relativity in 1905, which states that the speed of light in a vacuum is independent of the motion of all observers and that the laws of physics apply to all non-accelerating observers.
This seminal work presented new ideas about space and time as well as a new framework for all of physics.
After attempting to incorporate acceleration into the theory for many years, Einstein eventually published his general theory of relativity in 1915.
This proved that the deformation of space-time caused by big objects is perceived as gravity.
In its most basic form, it resembles a huge rubber sheet with a bowling ball in the middle.
The original historical records pertaining to Einstein’s discovery of gravitational waves are displayed at the Hebrew University in Jerusalem.
The force we perceive as gravity is created when a planet bends the fabric of space-time, just as the ball distorts the sheet.
The effect causes any object that approaches the body to fall in its direction.
According to Einstein’s prediction, the collision of two enormous bodies will cause such a massive ripple in space time that it should be observable from Earth.
The popular movie Interstellar was the most recent example of it.
Time drastically slowed down during a scene where the group visited a planet that had fallen into the gravitational pull of a giant black hole.
When they returned, crew members aboard the spacecraft were decades older than those on the planet.
