Location. At a distance of 22 billion kilometers, Voyager 1 spacecraft detects a strange noise

Voyager 1 space exploration, which explored the universe for a maximum of five years, but became operational in 1977, 45 years after it was launched. Thus, it will send all the recovered data to NASA. After passing through Jupiter and Saturn 40 years ago, the study is now advancing in the galaxy, the galaxy being the subject of the Sun and its magnetic field ceasing to influence their environment.

On Monday, a team of scientists led by Cornell University researchers published a bizarre finding in the journal Natural astronomy. Scientists were able to sense a signal by analyzing data sent by Voyager 1 at a distance of 22 billion kilometers. Stella Ocker, a doctoral student in astronomy at Cornell University in New York, explains that a “continuous buzz” … is a “very low and boring sound because it is on a short frequency band”.

Not yet had the chance to see the more powerful little green men. The signal taken by Voyager 1’s plasma emitting wave receiver (PWS) appears to be the sound of “galaxy gases”, especially the plasma trembling in this galaxy. This is the “first continuous measurement of galaxy formation”. NASA explains in a statement how to respond to the study.

In 2012, three months after leaving the heliosphere – the area most affected by our sun – Voyager 1 already blocked noises in galaxy. The same scene usually now after many months. But these signals seemed irregular, not continuous.

In stark contrast to the recently discovered “buzz”, it sounds like the background noise behind the temporary signals eventually dropped by Voyager 1.

“The galaxy is like a gentle, calm rain. It’s like returning to a good rain after a thunderstorm,” said James Cortes of New York University, the lead author of the study, which was published in Nature on Monday.

Measures the density of galaxy space

But how can researchers provide an explanation for this om? Why is it so fascinating? Here is an excerpt from Stella O’Keefe’s answer:

The system is not affected by any star, and researchers say it is a mixture of particles and radiation. As the researchers point out, the world of silence, by contrast, is constantly emitting noise. This will allow researchers to now discover the composition of galaxy space without waiting for a specific event to echo in the form of waves, and therefore intermittent noises (such as solar flares).

For the ultimate purpose, we need to not only understand how stars form, but also define our position in our galaxy.

The only mystery: the life of the trial? Because if Voyager 1 was the most man-made spacecraft from Earth, it would continue to age …

His twin sister, Voyager 2 – launched a few days before him in 1977 – continues. She crossed the heliopause – the boundary of the heliosphere – in 2018, six years after her twin.