Voyager 1 detects faint, persistent hum

[guohua]

So.

NASA's Voyager 1 detects faint, persistent hum beyond our solar system

This is interesting,,,, well sort of.
The fact that both Voyager 1 & 2 are operational is amazing.
Small Nuclear power packs works, but they won't mention that.

The farthest spacecraft from Earth, NASA's Voyager 1, said farewell to the solar system almost a decade ago, passing through an invisible door some 11 billion miles from Earth and crossing into interstellar space. Since then, it's tacked on another 3 billion miles and it's still sending data home, allowing scientists to probe the space between stars. 


In a paper, published in the journal Nature Astronomy on Monday, researchers examined data beamed back by Voyager 1's Plasma Wave

System (PWS) over its journey, but particularly after it passed through over the solar system's border.
The border is a messy "edge" where the sun's influence disappears and the interstellar medium begins.

The medium is typically characterized as empty, desolate and dark, but the PWS on Voyager 1 has detected a low, constant pattering against its detector, space raindrops gently falling on a window. Those drops signify plasma waves -- or interstellar gas -- is constant company for the spacecraft.
"We're detecting the faint, persistent hum of interstellar gas," said Stella Koch Ocker, a doctoral student at Cornell University who lead the research. "It's very faint and monotone, because it is in a narrow frequency bandwidth."
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