NASA probe furthest from Earth picking up mysterious hum from another galaxy
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autoevolution 11 May 2021, 7:33 UTC ·
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After crossing into interstellar space almost a decade ago and 43 years after leaving its home, NASA s Voyager 1 has now picked a faint, plasma hum, coming from 14 billion miles away which indicates that there might be more activity in deep space than it was previously thought. 1 photo
When it took off in 1977, Voyager 1 was carrying a Plasma Wave System (PWS). The instrument was used to measure the electron-density profiles of Jupiter and Saturn and study their magnetosphere.
Later on, when the spacecraft was passing through the heliosphere in 2012, the boundary at which the solar wind transitions into the interstellar medium, the scientists used the plasma wave experiments aboard Voyager 1 to look for the heliopause.
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Voyager 1, which is the farthest human-made object from Earth and the first to enter interstellar space, has been detecting a faint, persistent hum that scientists have attributed to interstellar gas.
Phys.org, citing research published in Nature Astronomy, reported that the spacecraft’s Plasma Wave System has picked up a persistent signature produced by the tenuous near-vacuum of space.
James Cordes, a professor of astronomy at Cornell University, reportedly described the sound as a quiet or gentle rain. In the case of a solar outburst, it’s like detecting a lightning burst in a thunderstorm and then it’s back to a gentle rain, he said.
Humanity s most distant space probe captures a strange sound
A new paper reveals that the Voyager 1 spacecraft detected a constant hum coming from outside our Solar System.
Voyager 1 in interstellar space. Credit: NASA / JPL - Caltech.
Voyager 1, humankind s most distant space probe, detected an unusual hum in the data from interstellar space.
The noise is likely produced by interstellar gas.
Further investigation may reveal the hum s exact origins.
Voyager 1, humanity s most faraway spacecraft, has detected an unusual hum coming from outside our solar system. Fourteen billion miles away from Earth, the Voyager s instruments picked up a droning sound that may be caused by plasma (ionized gas) in the vast emptiness of interstellar space. Launched in 1977, the Voyager 1 space probe along with its twin Voyager 2 has been traveling farther and farther into space for over 44 years. It has now breached the edge of our solar system, exiting the heliosphere, t
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