Scientists receive mysterious radio signal from space repeatedly
It is quite unusual for scientists to receive unidentified radio signals from the space, but it is for the first time that they are receiving mysterious radio signals in a series of bursts coming from a single source half a billion light-years from Earth.
There are usually two kinds of radio signals that are received by scientists: individual radio bursts that emit once and don’t repeat and fast radio bursts or FBRs that are millisecond-long bursts of radio waves in space.
As per scientists, the signals they are receiving now are FBR’s as they are repeatedly been receiving waves multiple times and usually when they repeat, it's sporadic or in a cluster.
The scientists are trying to figure out what and who are sending those signals. They cannot rule out the possibility of another species existing somewhere on this universe.
According to scientists, between September 2018 and October 2019, they detected a pattern in bursts occurring every 16.35 days. Over the course of four days, the signal would release a burst or two after every each hour and then it would be silent for twelve days.
The researchers are including the findings in the pre-print of a paper on arXiv, meaning the paper has been moderated but not fully peer reviewed. The authors have published a multitude of fast radio burst studies in recent years.
Earlier last year, the researchers detected the sources of eight new repeating fast radio bursts, including this signal. The repeating signals were traced to a massive spiral galaxy around 500 million light-years away.
Researchers believe that they can determine the cause and origin of these signals by tracing these mysterious bursts. So far, they have traced single and repeating fast radio bursts back to very different sources, which have deepened the mystery.