What is a wormhole, and does it exist on earth?

Wormhole is basically like a portal by which one can travel from one point in space to another. But it is usually considered as a Sci-fi conception. Read below-/

A favorite theme of science fiction is "the portal"--an extraordinary opening in space or time that connects travelers to distant realms. A good portal is a shortcut, a guide, a door into the unknown. If only they actually existed....

It turns out that they do, sort of, and a NASA-funded researcher at the University of Iowa has figured out how to find them.

"We call them X-points or electron diffusion regions," explains plasma physicist Jack Scudder of the University of Iowa. "They're places where the magnetic field of Earth connects to the magnetic field of the Sun, creating an uninterrupted path leading from our own planet to the sun's atmosphere 93 million miles away."

Observations by NASA's THEMIS spacecraft and Europe's Cluster probes suggest that these magnetic portals open and close dozens of times each day. They're typically located a few tens of thousands of kilometers from Earth where the geomagnetic field meets the onrushing solar wind. Most portals are small and short-lived; others are yawning, vast, and sustained. Tons of energetic particles can flow through the openings, heating Earth's upper atmosphere, sparking geomagnetic storms, and igniting bright polar auroras.

NASA is planning a mission called "MMS," short for Magnetospheric Multiscale Mission, due to launch in 2014, to study the phenomenon. Bristling with energetic particle detectors and magnetic sensors, the four spacecraft of MMS will spread out in Earth's magnetosphere and surround the portals to observe how they work.

Just one problem: Finding them. Magnetic portals are invisible, unstable, and elusive. They open and close without warning "and there are no signposts to guide us in," notes Scudder.

Actually, there are signposts, and Scudder has found them.

Portals form via the process of magnetic reconnection. Mingling lines of magnetic force from the sun and Earth criss-cross and join to create the openings. "X-points" are where the criss-cross takes place. The sudden joining of magnetic fields can propel jets of charged particles from the X-point, creating an "electron diffusion region."

To learn how to pinpoint these events, Scudder looked at data from a space probe that orbited Earth more than 10 years ago.

"In the late 1990s, NASA's Polar spacecraft spent years in Earth's magnetosphere," explains Scudder, "and it encountered many X-points during its mission."

Wormhole is a tunnel connecting 2 points in space-time.

This is the technical definition. Let me explain in a simple way.

  • Take a paper
  • Mark 2 far away points in the paper
  • Bend the paper and use a pencil to pierce through that paper.
  • That hole which connects the 2 point makes a tunnel like structure.

That same tunnel, but in our space time is a WORMHOLE!!

"Wormholes" are hypothetical possibility define by the Einstein. It is a mathematical structure of general theory of relativity. A wormhole is a short lived gateway, lasting only a brief moment that joins two black holes in different locations. Wormholes may connect two points in the present day universe or, perhaps, in different times. In wormhole theory, matter falling into a black hole at one point should emerge through a proposed "white hole" the reverse of a black hole at the other end. Any evidence of wormhole is not present yet.

Wormholes are theoretical concept.
A worm hole or the einstein rosen bridge, can be visualized as a tunnel with two ends, each at separate points in spacetime (i.e., different locations and/or different points of time)
The idea of worm hole comes from the fact that Nothing is perfectly flat or solid. If you look closely enough at anything you'll find holes and wrinkles in it.

Now this is true in the first three dimensions, So it's also true for the fourth dimension that is time.

There are tiny crevices, wrinkles and voids in time.

Down at the smallest of scales,even smaller than atoms, we get to a place called the quantum foam. This is where wormholes exist.

Unfortunately, these real-life time tunnels are Way too small for a human to pass through

but here's where the time machines comes into picture.

Some scientists think it may be possible to capture a wormhole and enlarge it many trillions of times to make it big enough for a human or even a spaceship to enter.

Theoretically, a time tunnel or wormhole could do even more than take us to other planets.

If both ends were in the same place, and separated by time instead of distance, a ship could fly in and come out still near Earth, but in the distant past.
There is a big problem with wormholes, which is explained by using paradoxes

The most famous one related to wormholes is called the Grandfather paradox.

The name comes from the paradox's common description, as a person who travels to the past and kills their own grandfather, preventing the existence of their father or mother, and therefore their own existence.

This kind of time machine would violate a fundamental rule that governs the entire universe that, cause happen before effect, and never the other way around.

In the end,a wormhole like this one can't exist. And the reason for that is feedback.

If you've ever been to a rock gig, you'll probably recognise the screeching noise.

It's feedback. Sound enters the microphone, it's made louder by the amplifier, and comes out at the speakers. But if too much of the sound comes from the speakers, it goes back into the mic and goes around and around in a loop getting louder each time. If no one stops it, feedback can destroy the sound system.

The same thing will happen with a wormhole due to radiation. As soon as the wormhole expands, natural radiation will enter it, and end up in a loop. The feedback will become so strong, that it will destroy the wormhole.

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And no, they don't exist on Earth

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