Termination shock confirmed

Voyager 1, scientists have confirmed, crossed the termination shock (a shock wave in the solar wind that marks its slowing from supersonic to subsonic speed) on December 16 and is now sending back the first information ever of the helisheath, a transition region at the edge of the solar system.

Voyager 1 is expected to reach the heliopause, the true edge of the solar system, sometime in the next eight to 10 years. After that, it will be the first manmade object to enter true interstellar space. Both it and Voyager 2 have enough electrical power and attitude control propellant to operate until 2020.

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