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The "Great Attractor" mystery has (probably) been solved - hundreds of galaxies hidden behind the Milky Way have been discovered

Using CSIRO's Parkes Radio Telescope equipped with state-of-the-art receivers, an international team of scientists has been able to peer through the stars and dust of the Milky Way into a previously unexplored region of space, discovering for the first time hundreds of previously hidden nearby galaxies 

 

Written by Dr. Dana Baram and Avi Blizovsky

"The Great Attractor" - Illustration: Perks Radio Observatory
"The Great Attractor" - Illustration: Perks Radio Observatory

Using CSIRO's Parkes Radio Telescope equipped with state-of-the-art receivers, an international team of scientists has been able to peer through the stars and dust of the Milky Way into a previously unexplored region of space, discovering for the first time hundreds of nearby galaxies that had been hidden until now.

 

Finding them solves the phenomenon of the mysterious gravity anomaly known as the "Great Attractor": that heavy and hidden "something" that pulls the Milky Way and hundreds of thousands of other galaxies towards it with an enormous gravitational force equal to that of a million billion suns. Despite being only 250 million light years from Earth – very close in astronomical terms – the new galaxies have been hidden from our view until now by our own galaxy, the Milky Way. Are these galaxies really the "big attractor"?

 

The lead researcher, Lister Stabley Smith of the University of Western Australia who also serves as a representative of the International Center for Radio Astronomy Research (ICRAR) said his team discovered 883 galaxies, about a third of which were previously unknown.

"The Milky Way is of course very beautiful and interesting to explore our galaxy, but it completely hides from our field of vision more distant galaxies that are behind it." said.

 

Stabley Smith said that scientists have been trying to solve the mystery of the big attractor since the first hints of the expansion of the universe were discovered in the XNUMXs and XNUMXs. "We do not fully understand what causes the gravitational acceleration of the Milky Way or where it comes from," he said.

 

The Milky Way is at the intersection of the Laniakea supercluster which is 500 million light years in diameter and contains a mass of hundreds of millions of billions of suns spread over about a hundred thousand galaxies. Within the boundaries of the Laniakea supercluster the galaxies move inward, check it like water flows in a course towards a valley. The large attractor region is a flat gravitational valley with a radius of attraction that extends across the entire supercluster.

"We know that in this area there is a collection of several large galaxies that we call clusters or superclusters, and that our Milky Way moves towards them at a speed of over 2 million kilometers per hour.

 

The study identified several new structures that could explain the movement of the Milky Way including three galaxy concentrations called NW1, NW2 and NW3 and two clusters CW1 and CW2.

 

René Karan-Kurtweg from the University of Cape Town and a partner in the study said that astronomers have been trying to map the distribution of galaxies hidden behind the Milky Way for decades. "We used a variety of methods but only radio observations were able to really allow us to see through the thick layer of dust and stars," he said. "An average galaxy contains 100 billion stars, so the discovery of new galaxies hiding behind the Milky Way indicates the existence of a mass that we did not know about until now."

The article is published this week in The Astronomical Journal

to the notice of the researchers

15 תגובות

  1. Unlike the big bang, the universe is probably in the process of the big contraction and will eventually converge to a singular energy point from which the next big bang will break out in about 25 billion years, those who don't believe me, will wait and see, and don't say I didn't tell you.

  2. In my humble opinion, it seems to me that the "big attractor" will converge in a few tens of billions of years to become a huge super black hole which under certain conditions will meet the conditions of a "big bang", and with the emergence of a new universe on the ruins of which we will rise. In my opinion, this is how our universe began, on the ruins of a previous universe.

  3. I am not promoting any agenda, the commenters are independent people who are not related to the site in any way and this is a free country, everyone is allowed to express themselves the only thing I block in principle are recommendations not to get vaccinated.
    my father

  4. The proof of this is a delay of reactions.
    And in a statistically significant way, comments that go against your agendas are often delayed or sometimes deleted. And your usual excuse: wordpress. (Which miraculously exists only on this site. On other sites with wordpress this does not happen. "Interesting")

  5. Spring.
    Here's an idea:
    When you stop promoting a leftist agenda, under the guise of science, and start presenting scientific content on the website - then maybe they will start paying attention to you.
    Putting puppies like Nisim and the like to guard the embers of the left in the guise of "science" and instilling this thing in the public... is a failed step. And this is not the aspiration of the absolute majority of the Jewish public in the Land of Israel in the Jewish state (even though it insults you and you would not want it in this reality).

  6. When you convene a meeting of the marketing managers and the speakers and unanimously decide not to give me a penny and claim that this is a final decision (when even Supreme Court decisions can be appealed by a broad panel) this is simply arrogance, if this is not a boycott then what is?
    I am shouting because this kind of work has been done for 20 years and everyone I approached, even the bride and groom of the Nobel Prize, looked at me indifferently and saw the boycott as a kind of natural phenomenon. Instead of seeing the project as one of the most important in the country.
    By the way, I'm writing in the comments because I was asked not to do shaming, so I'm not writing a post on the website and on Facebook.

    I am not ashamed of what I do and I do not underestimate its value, the ones who should be ashamed are the boycotters who have not and will not contribute a cent from me to the Israeli company, the main thing is that they earn R40 thousand per month. It goes along with the fact that everyone is elderly and doesn't understand how the digital age works. They only cause damage to such a magnificent system, the researchers deserve to know who is betraying them
    And besides, Adam asked a correct question, and I had to answer him.
    And that an entire establishment that was supposed to fight the general insanity adds to it by weakening an important factor that fights against it is complete stupidity and more so than institutions that are staffed by the smartest people in the country. I will never forget the ridicule of the president of the Weizmann Institute, one day I will tell what he said, people will think that it was someone from the street and not the president of a respected university.
    For twenty years I have suffered such insults and I have the skin of an elephant but it too has cracked.

    And besides, I ran out of ammo. No logic convinces them and not the fact that in 2015 1.3 million readers read at least one article on the website, so what is left for me to do? I would appreciate ideas

  7. Avi,

    You run a site about science that people enjoy reading and learning from. Please do not demean yourself by such Don Quixote behavior. The comments about "boycott" only hurt you, your image and the image of the site. It is the right of any academic institution not to see fit to fund you and your website, and this is not improper behavior (even if in your eyes or in the eyes of others it is wrong) and certainly not a "boycott".

  8. The science lover, if you convince the heads of the universities to lift the boycott imposed on the website from the first day 19 years ago, I can hire linguistic editors. Unfortunately, I am not close to the government or the tycoons, so even though I invest a full-time job, the return is zero (it's lucky that Google they can't participate in the boycott) and those who benefit from my work - that is, the universities, close themselves in the ivory tower and they don't care that today there is no business model for the media, and therefore the number of reporters who are experts in science In all the media you can count on the palm of one hand two of its fingers amputated, which means they are ready to harm themselves and their image (because every day that the boycott continues I talk to more people who will intervene) the main thing is not to get suckers. 1.3 million surfers read at least one article on the site in 2015, and it is still viewed as a blog with which any transaction is invalid.

    Unfortunately, the seclusion in the ivory tower is a worldwide phenomenon. They are in no way ready to replace the marketing managers who worked back when the print press was at its peak with someone from Generation Y. If there was even one, the problem could be solved.

    Unfortunately, this opacity reaches up to the level of presidents, when once they move from first class to business, they cover me for a whole year of activity.

    My colleague and friend Zvika Katzburg already said, "They should have wrapped you in cotton wool, instead they are wrapping you in steel wool"
    I think that after 20 years I deserve that the science enthusiasts in Israel cry out. It's a boycott like the BDS no matter what I do, and no matter how many surfers there are, they refuse to even negotiate.

  9. The editing errors on this site are simply intolerable. This page is another example of the many cases where a page here ends for me with the title and I run to read other pages in the English language, which tell the story legibly. "The Milky Way is in Shulav", to name just one of the errors (albeit one of the more horrifying). Sometimes it seems that the translation and editing for various publications is somehow carried out out of sleep at three in the morning. That's how you can't manage a website and a community.

  10. It does not seem to me that the three hundred additional galaxies they discovered (in addition to the 600 known, solve the problem of the great attractor.
    It seems to me that they need much, much more mass and they will probably take it from where they have always taken it - from the dark mass, a cheap material that is available to everyone, and no one needs to be accountable for it.

  11. If "gravitational acceleration" exists, doesn't that mean that if we were moving at a speed of 2 million kilometers per hour a decade ago, today we have to move at a higher speed?

  12. No need to exaggerate...it only solves the forces that were noticed in our area and didn't understand where they were coming from

  13. I didn't understand then, it solves the problem why they thought there was dark matter and dark energy - because now the amount of matter has increased and explains some of the data we didn't know before?

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