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Voyager spacecraft detects 'persistent hum' beyond our solar system

Voyager spacecraft detects ‘persistent hum’ beyond our solar system
One of the Earth’s longest-flying spacecraft has detected a “persistent hum” beyond our solar system, according to a new study.
NASA’s Voyager 1 launched on September 5 1977, from Cape Canaveral, Florida, aboard a Titan-Centaur rocket, just weeks after its sister craft, Voyager 2. Although they were initially designed to last five years, more than 43 years after they launched, the crafts are still sending back data as they explore interstellar space.
Instruments aboard Voyager 1, which has moved past the edge of the solar system, through the solar system’s border with interstellar space, known as the heliopause, and into the interstellar medium, have detected the sounds of plasma waves, according to research published Monday in the journal Nature Astronomy. ....

United States , James Cordes , Stella Koch Ocker , Shami Chatterjee , Cornell University , Cape Canaveral , Cornell University Led , Koch Ocker , Wave System , George Feldstein Professor , ஒன்றுபட்டது மாநிலங்களில் , ஜேம்ஸ் கார்ட்ஸ் , ஷமி சாட்டர்ஜி , கார்னெல் பல்கலைக்கழகம் , கேப் காணவேறல் , கார்னெல் பல்கலைக்கழகம் வழிநடத்தியது , அலை அமைப்பு , ஜார்ஜ் ஃபெல்ட்ஸ்டீன் ப்ரொஃபெஸர் ,

Voyager 1 Picks Up a Hum Outside of our Solar System

Bad news for anyone suffering from one of those mysterious hums that are occurring around the world with no apparent cause nor obvious way to stop them. If you want to just go to a place where you can’t hear them, be prepared for a long trip – a really loooong trip. The Voyager 1 spacecraft, which left Earth in 1977 and left the solar system in 2012, recently picked up a mysterious hum some 14 million miles away from the planet. Does it have enough power left to stick its solar panels inside its audio intakes?
“We find au-scale density fluctuations that trace interstellar turbulence between episodes of previously detected plasma oscillations. Possible mechanisms for the narrowband emission include thermally excited plasma oscillations and quasi-thermal noise, and they could be clarified by new findings from Voyager or a future interstellar mission.” ....

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Nasa spacecraft hears strange 'hum' outside our solar system

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A Nasa spacecraft is picking up a strange “hum” outside of our solar system.
Voyager 1 is the most distant human-made object ever, as one of a pair of spacecraft launched towards the edge of the solar system, 44 years ago. Its journey has taken it right to the edge and beyond it – and it is now fying through the “interstellar medium” beyond our own Sun’s influence.
Instruments on board the spacecraft that attempt to analyse that interstellar medium have heard a constant drone, which appears to be the noise of the universe beyond our own neighbourhood. ....

James Cordes , Stella Koch Ocker , Shami Chatterjee , Space Network , Cornell University , George Feldstein Professor , Deep Space Network , ஜேம்ஸ் கார்ட்ஸ் , ஷமி சாட்டர்ஜி , இடம் வலைப்பின்னல் , கார்னெல் பல்கலைக்கழகம் , ஜார்ஜ் ஃபெல்ட்ஸ்டீன் ப்ரொஃபெஸர் , ஆழமான இடம் வலைப்பின்னல் ,

Voyager 1 Detects Constant Plasma "Hum" In Interstellar Space

Humans can’t hear sounds in space, but there are sounds waves moving through the rarefied plasma that fills interplanetary and even interstellar space, the gaps between the stars. Now, thanks to Voyager 1, we can say what interstellar gas sounds like: a constant hum.
Voyager 1 is the furthest human-made object from Earth. Since 2012 when it crossed the heliopause and left the Solar System, it has been traveling in interstellar space, giving humanity our first direct observations of what the space between stars is really like. Previous studies of this interstellar plasma focused on shockwaves, some of which were triggered by the Sun. This new study, published in Nature Astronomy, looks at the constant background noise of the plasma waves. ....

James Cordes , Stella Koch Ocker , Shami Chatterjee , Cornell University , Solar System , Nature Astronomy , George Feldstein Professor , ஜேம்ஸ் கார்ட்ஸ் , ஷமி சாட்டர்ஜி , கார்னெல் பல்கலைக்கழகம் , சூரிய அமைப்பு , இயற்கை வானியல் , ஜார்ஜ் ஃபெல்ட்ஸ்டீன் ப்ரொஃபெஸர் ,

In emptiness of space, Voyager I detects plasma 'hum'

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In emptiness of space, Voyager I detects plasma ‘hum’
Voyager 1 – one of two sibling NASA spacecraft launched 44 years ago and now the most distant human-made object in space – still works and zooms toward infinity.
As the craft toils, it has long since zipped past the edge of the solar system through the heliopause – the solar system’s border with interstellar space – into the interstellar medium. Now, its instruments have detected the constant drone of interstellar gas (plasma waves), according to Cornell-led research published May 10 in Nature Astronomy.
Examining data slowly sent back from more than 14 billion miles away, Stella Koch Ocker, a Cornell doctoral student in astronomy, has uncovered the emission. “It’s very faint and monotone, because it is in a narrow frequency bandwidth,” Ocker said. “We’re detecting the faint, persistent hum of interstellar gas.” ....

Williams Kurth , James Cordes , Stevenr Spangler , Stella Koch Ocker , Shami Chatterjee , Carl Sagan , Donalda Gurnett , Propulsion Laboratory , University Of Iowa , National Science Foundation , Cornell Carl Sagan Institute , Plasma Wave System , George Feldstein Professor , Golden Record , Jet Propulsion Laboratory , ஜேம்ஸ் கார்ட்ஸ் , ஷமி சாட்டர்ஜி , கார்ல் சாகன் , ப்ரொபல்ஶந் ஆய்வகம் , பல்கலைக்கழகம் ஆஃப் ஐயுவா , தேசிய அறிவியல் அடித்தளம் , கார்னெல் கார்ல் சாகன் நிறுவனம் , ஜார்ஜ் ஃபெல்ட்ஸ்டீன் ப்ரொஃபெஸர் , தங்கம் பதிவு , ஜெட் ப்ரொபல்ஶந் ஆய்வகம் ,