December 8, 2023

Voyager 1

  • The Voyager 1 probe recently picked up humming sound. The scientists have named this as “Plasma Wave Emission”. This humming sound has been interpreted as interstellar gas activity. Moving forward, the Voyager 1 will help scientists to understand the interactions between solar winds and the interstellar medium. The hum was of narrow frequency bandwidth.
About the discovery
  • The discovery of humming sound was made by the Plasma Wave System Instrument of Voyager 1. This sound was heard after Voyager 1 exited the heliosphere and entered the interstellar space.
  • The first humming sound was heard after three months the Voyager 1 exited heliosphere. The second sound was heard after six months the Voyager 1 exited the heliosphere. However, the second sound was louder. With this, the scientists conclude that the interstellar medium is getting thicker at faster rate.
Voyager 1
  • The Voyager 1 was the first spacecraft to enter the heliosphere of the sun in 2012.
  • The Voyager 1 was launched in 1977.
  • It was launched to study the outer solar system and planets such as Saturn and Jupiter on its way.
  • Voyager 2 is called the twin of Voyager 1.
  • After operating for 44 years, it is still communicating with the Deep Space Network of NASA. The Deep Space Network of NASA is a worldwide space communication network located in the US, Spain and Australia.
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