An international group of researchers have crunched the numbers and revealed something straight out of science-fiction: They say that the center of our Milky Way galaxy might host a huge wormhole. Regardless of what some media outlets are saying about this crazy theory, the outcomes are completely baseless according to several scientific experts. So, as much as few of us might want to travel through a wormhole like in Christopher’s Nolan's recent film "Interstellar," it's never going to happen. At least not from the center of our galaxy the way the group proposes in their paper, which was issued in the journal Annals of Physics few weeks ago.
|Wormhole in "Interstellar" film.|
Wormholes are cosmic portals that several physicists theorize can link distant places of the same universe or connect one universe to a completely different, parallel universe. They form when exceptionally heavy objects generate a well in the fabric of space-time that is deep enough to touch completely another side of the universe.
If they exist, wormholes might help humans travel to or transfer information to different parts of the universe that are several millions of light years away that we might otherwise never reach, unless we make faster-than-light spaceships. The team of scientist talks over a definite type of wormhole called a Morris-Thorne wormhole. This wormhole is what theoreticians call a passable wormhole, which means you can go into the wormhole end and fall out the other side. In contrast, the original wormhole — called a Rosen-Einstein bridge and also highlighted in the film "Thor"— is unstable and closes up, so once you get through to other side, there's no going back.
Propitiously for the characters in "Interstellar," the wormhole was unchanging and traversable, which is no surprise since the science adviser of the film, Kip Thorne, first anticipated the possibility of traversable wormholes with his graduate student Mike Morris back in 1988.
What creates Morris-Thorne wormholes stable, and hence traversable, is that as an alternative of closing off, like a Rosen-Einstein bridge, they are held open. Holding them open is what theorists have called "exotic matter," a hypothetical, mysterious type of matter that does not follow our laws of physics.
Dark matter is one potential example of mysterious matter and there's solid evidence to propose that our home galaxy, the Milky Way, is enclosed in a massive dark matter bubble, called a dark halo. Astrophysicists have discovered that in most spiral galaxies, counting the Milky Way, dark matter is utmost dense at the center of the dark halo.
And in this recent paper, the group proposes that the amount of dark matter at the center of our galaxy's dark halo could have sufficient density to generate a huge wormhole. Last year, some of the same authors distributedearlier outcomes specifying that wormholes could occur at other points in the dark halo.
"This result is an important compliment to the earlier result, thereby confirming the possible existence of wormholes in most of the spiral galaxies," the group says in a pre-print of their recent paper on arXiv.org.
But several scientists are doubting this study:
Matthew Buckley, a theoretical physicist at Rutgers University, says that exotic material required to hold open a Morris-Thorne wormhole at the middle of our galaxy "would not have the required properties to be dark matter." He goes on to say that some of the group's work "seems very doubtful."
MIT theoretical astrophysicist, Chanda Prescod-Weinstein, also says that the paper's approach saying that the solution the group delivers would not form a stable wormhole. Another theoretical physicist, Lawrence Krauss of Arizona State University, told NBC News:
"My understanding of wormholes is that we have no idea how to make them stable and traversable without exotic unknown forms of energy so any discussion of traversable wormholes as realistic travel devices is highly speculative at best."
So what’s your opinion????