What if we could go back in time? Indeed, what if we could literally see the past with our own eyes? This really suggestive hypothesis is, in some ways, reality. No, not in the sense that we can see the past of each of us, individually. But apparently we have all the means to see (at least) the past of our Universeand to prove it is an explosion sighted in Space.
Yes, because this large explosion is in reality neither more nor less than a “relic“: a sort of space fossil, a remnant of an ancient Supernova which is located about 1.60.000 light years from planet Earth and tells a story so ancient as to explain some phenomena that occurred at the dawn of our history.
The Large Magellanic Cloud and our galaxy
But let’s take a step back. What is the story of this explosion? And what led scientists to look precisely in the direction of this mysterious phenomenon? Basically, researchers have been observing the Large Magellanic Cloud for some time, which has already left everyone speechless due to the presence of a “luminous giant” and for a large tidal wave capable of “bending the light”.
For the uninitiated, the Large Magellanic Cloud is (despite its name) a small galaxy, probably a satellite of the Milky Way, also observable with the naked eye in the night sky of the southern hemisphere of the Earth. Despite being an irregular galaxy, it has many similarities with ours. Consequently, what is observable inside it is a kind of small summary of what happened to our space nest, and that is why the gaze of the scientific community is focused on it.
The space explosion detected by NASA
The space explosion detected by the Chandra XRay orbital telescope and analyzed by Hubble Space Telescope, therefore, it should be framed as a small summary of our history. To be precise, the deflagration would help determine the evolution and the disappearance of a distant star. In particular, the identification of him would lead to understanding the causes of the extinction of this star, which reached a critical mass and then exploded.
This is very important because it also affects the “life path” of our stars. In fact, it seems that the celestial body that has left the traces of its end may be “dead” either by extracting, in some way, matter from a nearby star and therefore becoming too large to continue to exist, or by merging with a white dwarf. In both the first and second cases, the consequence would have been a thermonuclear explosionclearly destructive.
The photos taken by Hubble and the window on the past
The photo taken by Hubble is certainly breathtaking: the center of the image is dominated by colored remnants of the star, surrounded by blood-red debris. The core of the explosion is vivid, purplish, with a concentration of low, medium and high energies that fade into green, blue and creamy white.
Starting from this shot, the researchers compared the images taken by Hubble to the Large Magellanic Cloud in the years 2010, 2011 and 2020, in order to measure the shock wave velocity of the explosion. According to the calculations, the light from the explosion would have reached Earth about 670 years ago, opening a window on the past that allows us to establish when the detonation occurred, what caused it and making sure that, now, the scientific community has a clearer idea about the explosions that occurred during the Big Bang period.
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There has been an explosion in space that is haunting scientists
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