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This is CBS I Am the World. I'm John Bachelord from the surface of the planet Earth.

I believe we're outside the solar system with Bob Evermann.

He keeps the website behind the black and we're headed to Veeja, Voyager 2, and Engineering always comes up with a solution.

Bob, a very good evening to you. Voyager 2 is restored. How so? Good evening to you.

It's not so much that it's restored, but the engineering science team at Voyager 2 have improvised, have worked out a way to try to extend its mission in next year or two.

We have to understand that there's a limit to how much agency it can do. There's a limit sometimes, but there's a limit.

Voyager 2 and Voyager 1 both were launched in the late 70s using what they call RTG power supply.

They're basically nuclear power. It's a radioisotode that gives off heat and that produces its use to produce electricity.

They've been carrying out the electricity in perturbency use, and so it's very long lasting.

They had anticipated that these things would last about 50 years of power, but what happens is very slowly the power levels go down very slowly.

This has been the case. But because the other instruments on the Voyager 2 are generally been functioning, these are those both spacecrafts have been functioning for the 45-some-odd years since launch.

However, as time is passing, they've got to shut down certain things because they don't have as much power.

The focus has been trying to keep the instruments functioning.

So engineers have now worked out a system to use what they call the backup satellite power supply to basically extend the life of the spacecraft so that the instruments can function longer than planned.

The idea is they're going to start turning off instruments in the next year or so, and hold on to some so that they can work at least for an instrument for as long as possible.

But they're going to have to start turning off some instruments. With this improvisation, they can avoid turning anything off for a longer period of time.

And that's essentially where we are. The truth is that the computer on board, both Voyagers, are the longest-rooting continuously operated computers ever in the history of human race.

They've been working steadily continuously for 45-plus years. And they continue to work until all the instruments come back.

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