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Monday, 26 January 2015

Wormhole to another galaxy may exist in Milky Way


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A giant doorway to another galaxy may exist at the centre of the Milky Way, a study suggests.

Scientists believe that dark matter at the centre of our galaxy could sustain a wormhole that we could travel through.

Wormholes are areas where space and time are being bent so that distant points are now closer together.

Einstein predicted them in his theory of General Relativity but nobody knows how they could be held open so that someone could travel through. Most scientists believe that It is extremely unlikely they could exist naturally in the universe. It would take a huge mass, like a Neutron star, to create a bend in time which could bend space time enough to meet another tunnel on the other side. No natural examples have ever been detected.

"If we combine the map of the dark matter in the Milky Way with the most recent Big Bang model to explain the universe and we hypothesise the existence of space-time tunnels, what we get is that our galaxy could really contain one of these tunnels, and that the tunnel could even be the size of the galaxy itself," said Professor Paulo Salucci.

"But there's more. We could even travel through this tunnel, since, based on our calculations, it could be navigable. Just like the one we've all seen in the recent film 'Interstellar"'.

He said the research was surprisingly close to what was depicted in director Christopher Nolan's movie, for which theoretical physicist Kip Thorne provided technical assistance.

"What we tried to do in our study was to solve the very equation that the astrophysicist 'Murph' was working on," said Prof Salucci. "Clearly we did it long before the film came out."

Wormhole, conceptual artwork

 Wormholes bend space-time to allow distant regions to meet

Any wormholes existing in nature have previously been assumed to be microscopic pinpricks in the fabric of space-time.

But the one possibly lying at the centre of the Milky Way would be large enough to swallow up a spaceship and its crew.

Prof Salucci added: "Obviously we're not claiming that our galaxy is definitely a wormhole, but simply that, according to theoretical models, this hypothesis is a possibility."

Other "spiral" galaxies similar to the Milky Way - like its neighbour Andromeda - may also contain wormholes, the scientists believe.

Theoretically it might be possible to test the idea by comparing the Milky Way with a different type of nearby galaxy, such as one of the irregular Magellanic Clouds.

In their paper, the scientists write: "Our result is very important because it confirms the possible existence of wormholes in most of the spiral galaxies ..

"Dark matter may supply the fuel for constructing and sustaining a wormhole. Hence, wormholes could be found in nature and our study may encourage scientists to seek observational evidence for wormholes in the galactic halo region."

The theory was published in the journal Annals of Physics.

Source : Telegraph