Scientists believe that they might have detected a real signal from the so-called “Dark Universe.” During an analysis of the data gathered by the European Space Agency’s XMM-Newton spacecraft in late 2018, a team of astronomers noticed a mysterious spike in X-ray emissions. The peculiarity of this event was that the signal, dubbed as Andromeda Signal, came from unknown particles or atoms.
“There’s something we just don’t understand about the internal structure of how the universe works,” said Enectali Figueroa-Feliciano, an associate professor of physics at Northwestern and the MIT Kavli Institute for Astrophysics and Space Research, cited by The Daily Galaxy.
“The signal’s distribution within the galaxy corresponds exactly to what we were expecting with dark matter — that is, concentrated and intense in the center of objects and weaker and diffuse on the edges,” added Oleg Ruchayskiy, the study’s co-author.
“Dark Universe” Signaled Us – The Andromeda Signal Of Unknown Particles or Atoms
“Nature is being coy. When theorists write down all the ways dark matter might interact with our particles, they find, for the simplest models, that we should have seen it already. So even though we haven’t found it yet, there’s a message there, one that we’re trying to decode now,” said Figueroa-Feliciano.
Three experiments are focusing on the dark matter, and “scientists are crossing their fingers that they may finally glimpse these long-sought particles. In past conversations with The Kavli Foundation, scientists working on these new experiments expressed hope that they would catch dark matter but also agreed that, in the end, their success or failure is up to nature to decide,” The Daily Galaxy reported. All these experiments might come up with a better understanding of dark matter.
But, in short, some scientists believe that they have already detected a real signal from the so-called “Dark Universe.” The emission came from the Andromeda Galaxy (The Andromeda Signal), and its pattern did not match any known particles or atoms. Possibly, dark matter was behind the signal, but we have to wait until April this year when the so-called Axion Dark Matter eXperiment might prove it.
With over seven years of experience in online journalism, Vadim is passionate about everything related to science and the environment. For us, he will thus cover climate, environment, and science news, among others.