Monday 16 September 2013

Voyager 1 becomes the first man-made object to leave the solar system

Voyager 1 spacecraft has become the first man-made resist have left the solar system for that dark and mysterious arena of interstellar space according to NASA. The spacecraft, size a small car weighing over 700 kg, premiered by the US space agency, NASA, on September 5, 1977 to review the outer Solar System and interstellar medium.


Discovery:
The telltale sign
  • Scientist learned that it was no longer picking up charged particles which emanate in the sun, suggesting it had left the solar system.
  • Simultaneously, there was an increase in cosmic rays originating from outside the solar system.
Final nail within the coffin
  • Scientists needed to measure the spacecraft’s plasma environment to create a definitive determination of its location but insufficient working plasma sensor in Voyager 1 would be a hurdle.
The solution:
  • A coronal mass ejection, an enormous burst of solar wind and magnetic fields, from Sun in March 2012 reached Voyager 1’s location 13 months later, in April 2013, which made the plasma round the spacecraft to vibrate like a violin string.
  • This data ultimately established the truth that it indeed has gone beyond our solar system.
Prospects
  • The spacecraft moving at 17 km per second is considered to be at a distance of about 125 AU in the Sun as of August 2013. It, presently inside a transitional region immediately away from solar bubble, where some effects from your sun are still evident, is anticipated to remain in communication with Earth until a minimum of 2025.

1 comment:

  1. It's amazing how NASA can send and receive signals from Voyageur1 11 1/2 billion miles away and I can't even get a clear signal on my cell phone if I'm not within range. Go figure!

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