The radio sign itself, detected in spring 2019 and reported on earlier in The Guardian, is in some ways the stuff of desires for alien hunters. It was a narrow-band sign with a frequency of 982.02 MHz as recorded on the Parkes Observatory in Australia. Nature, whether or not an exploding star or a geomagnetic storm, tends to broadcast on a variety of frequencies.
“The sign seems to solely present up in our knowledge after we’re trying within the course of Proxima Centauri, which is thrilling,” Ms. Sheikh mentioned. “That’s a threshold that’s by no means been handed by any sign that we’ve seen beforehand, however there are plenty of caveats.”
Practitioners of the hopeful discipline of the seek for extraterrestrial intelligence, also called SETI, say they’ve seen all of it earlier than.
“We’ve seen a majority of these sign earlier than, and it’s all the time turned out to be R.F.I., radio frequency interference,” Dan Werthimer, chief technologist on the Berkeley SETI Analysis Heart, who just isn’t a part of the Proxima Centauri research, wrote in an e-mail.