The Infinite Monkey Cage cover image

The Deep Space Network

The Infinite Monkey Cage

CHAPTER

Voyager 2

Voyager 2 is a nuclear powered battery on board. And that battery is inevitably slowly degrading, running out of power. So one by one, the instruments have shut off to the cameras and those beautiful pictures. But what it has left on are the local measurements,. The magnetic field, the energetic particles, electrons and like that are out in the outer regions of now beyond the solar system. It is now passed into the interstellar medium. This is the tenuous gas that lies between the stars. A million Kelvin temperatures, a few electrons per cubic meter. I mean, just so close to being a vacuum. Yet still filled with stuff and stuff that has astrophysical implications.

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