Alien hunters have an update on a mysterious signal from the nearest exoplanet


eso1629e.jpg

This artist’s impression shows the planet Proxima b orbiting the red dwarf star Proxima Centauri, the closest star to the solar system.


ESO/M. Kornmesser

What once appeared to be a possible signal from Proxima Centauri was probably just an echo from Earth. Astronomers dedicated to searching space for signs of technology created by extraterrestrial intelligence, also known as technosignatures, say one promising lead now looks to have been a false positive.

“Evidence suggests that the signal is interference from human technology, although we were unable to identify its specific source,” explains Sofia Sheikh with the Breakthrough Listen team, in a statement.

The Breakthrough Listen initiative helps support the search for extraterrestrial intelligence, and in 2020 team members using the Parkes telescope in Australia reported an intriguing signal picked up when they pointed the telescope at Proxima Centauri, the nearest known planet beyond our solar system. 

But after Sheikh performed a deeper analysis of the signal, it began to look much less alien, explains Andrew Siemion at the University of California, Berkeley, who also leads Listen’s science team. 

“In the case of this particular candidate,” Siemion says, “our analysis suggests it’s highly unlikely that it is really from a transmitter out at Proxima Centauri. However, this is undoubtedly one of the most intriguing signals we’ve seen to date.”

Sheikh added that “the signals are spaced at regular frequency intervals in the data, and these intervals appear to correspond to multiples of frequencies used by oscillators that are commonly used in various electronic devices.”


Now playing:
Watch this:

Aliens and the search for extraterrestrial intelligence



6:23

The analysis is laid out in two new papers published Monday in Nature Astronomy.

So once again, after decades of searching the cosmos, the result is still “it’s not aliens.” But Breakthrough Initiatives Executive Director Pete Worden says the latest report helps to further fine-tune the process of filtering out false positives. 

“While we were unable to conclude a genuine technosignature, we are increasingly confident that we have the necessary tools to detect and validate such signatures if they exist.”



Source link

Latest

CPI inflation stays above RBI comfort zone

In a move that may weigh on yields across the curve, the RBI last week set a coupon of 6.10% for the new...

Novice Range Drink Driving

Since 2019 police in Australia have been able to issue a penalty notice of $561 and place drivers in 3-month suspension if they reach a novice range when a reading is taken of their blood alcohol.

3 Ways to Collect Rent Online

Online rent collection is one of the most attractive features of property management software. This feature relegates cash and check payments to the past. Instead,...

Choosing The Best Designs for The Custom Flags of Businesses

One of the most important things that businesses need to consider is an effective mode of promotion to lend a voice to the company’s...