Astronomers have been able to detect many unknown radio signals from space through a new and powerful radio telescope in Australia. Only in 2018 is their number 20, Ryan Shannon of the Swinburne University of Technology told Nature.
Interesting in this case is that there is a sharp increase in signals - their total number for the past 11 years is 10. Scientists believe that they come from distant zones of the universe and not from the galaxies around.
What's more, the new signals are the most powerful so far. Most are one-off - no visible source. One of the few repetitive signals was detected a few years ago, locating a galaxy at 3 billion light-years away.
Shannon says scientists will try to track the sources and the newly discovered signals. They are at different frequencies, showing how much material they have spent on their journey. "Because we know they are coming from very far from the universe, we can use signals to detect missing matter that is in the space between galaxies, which is very exciting," Shannon also said.