Voyager, launched in September 1977, is signalling through its radioactive power pack that there is a distinct change in the direction of the flow of particles from the sun, which are no longer traveling outwards but sideways, the broadcaster said.
This means Voyager is on the verge of making the jump into interstellar space, probably within the next five years, the BBC said.
Radio signals from Voyager are now taking 16 hours to arrive on earth, the BBC reported.
Voyager 1 to Leave Solar System
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