A Mysterious, Subtle Signal is Emanating from the Interstellar Medium - 2021

Astrogeology, Asteroids, Robots, Space Flight & Extraterrestrial Matters

Cameron reported in May, 2021 that Voyager 1 is 14.1 billion miles from Earth. It is the furthest man-made object from our planet, and it moves farther and farther away from us and into interstellar space every day. And still, more than 43 years after it launched into space, this intrepid explorer of the cosmos continues to feed scientists here on Earth with incredible details about our corner of the galaxy. Now, it has made yet another discovery: a mysterious, subtle signal emanating from the interstellar medium.

The bursts were detected by Voyager 1’s Plasma Wave System, one of the few instruments still operating on the craft. The Plasma Wave System works a bit like a voltage meter an electrician might use on a household electric outlet. That’s how reporter Mordechai Rorvig describes the instrument that alerted researchers here on Earth to the mystery signal (and hum). 

Other reports of the "hum" from Voyager 1:

https://www.cnet.com/news/nasa-voyager-1-detects-faint-hum-beyond-our-solar-system/ 

https://www.nasa.gov/feature/goddard/2021/as-nasa-s-voyager-1-surveys-interstellar-space-its-density-measurements-are-making-waves

https://www.cnet.com/news/nasa-voyager-1-detects-faint-hum-beyond-our-solar-system/

https://news.cornell.edu/stories/2021/05/emptiness-space-voyager-1-detects-plasma-hum

https://earthsky.org/space/voyager-1-droning-hum-plasma-interstellar-space

https://www.sciencealert.com/voyager-1-is-continuing-to-detect-a-hum-of-plasma-waves-in-the-void-of-interstellar-space

http://spaceref.com/interstellar/in-the-emptiness-of-space-voyager-i-detects-plasma-hum.html

https://www.forbes.com/sites/brucedorminey/2021/05/10/nasas-voyager-1-spacecraft-detects-gentle-rain-of-vibrating-interstellar-plasma/

https://www.skynews.com.au/details/_6255321530001