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NASA's Voyager 1 spacecraft has detected a strange humming sound coming from interstellar space, at over 22.74 billion kilometres away.

Since its launch in September of 1977, Voyager 1 had multiple objectives including that of exploring our solar system. But, rather than exploring Neptune and Uranus, NASA decided to use Saturn's gravitational pull to essentially slingshot the craft into interstellar space, where it reached in 2012 travelling at a speed of 37,933 mph.

Some of Voyager 1's instrumentation has been shut down to conserve power to the craft, which includes the Plasma Science PLS system, the Imaging Science Subsystem, the Infrared Interferometer Spectrometer and Radiometer (IRIS), the Photopolarimeter Subsystem (PPS), the Planetary Radio Astronomy (PRA System) as well as the Ultraviolet Spectrometer (UVS).

However, there are some instruments that are still running, which is why we can still keep in contact with Voyager 1, and it is still able to send back information – although it takes well over a day in order for it to reach us thanks to its great distance from the Earth. The operational instruments left on Voyager 1 are the Cosmic Ray Subsystem (CRS), the Low-Energy Charged Particles (LECP), the Magnetometer as well as the Plasma Wave Subsystem. These instruments are expected to last until 2025, and after that, Voyager 1 will officially be on its own.

On the 12th of May 2021, Voyager 1 picked up a strange humming sound in interstellar space that is, without a doubt, eery!

Scientists at NASA and astrophysicists who collected the data believe that the sound is caused by the small amounts of gas that is present in space, and was detected by Voyager 1's Plasma Wave Subsystem.

Take a look at the video below by the YouTube channel: Sci Tech Dailer on NASA's Voyager 1 Captures Sounds Of Interstellar Space...

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