It’s hard to overstate the milestone: At some point in the near future — it could be days or months, possibly, but not likely even a few years — Voyager is expected to break away from the bubble of particles emitted by the Sun encasing our solar system and enter the totally new, completely unexplored region of interstellar space, the black void separating us from the other star systems in our Milky Way Galaxy.

It’s hard to overstate the milestone: At some point in the near future — it could be days or months, possibly, but not likely even a few years — Voyager is expected to break away from the bubble of particles emitted by the Sun encasing our solar system and enter the totally new, completely unexplored region of interstellar space, the black void separating us from the other star systems in our Milky Way Galaxy.

The labels on the light ray with different pieces of information each are informative and blend in with the background. The light ray also resembles a spaceship, which gives me some ideas.

The labels on the light ray with different pieces of information each are informative and blend in with the background. The light ray also resembles a spaceship, which gives me some ideas.

If there's intelligent life within 100 light years of our planet, it's likely they've already gotten an earful (or antennae-ful, or whatever analogous organ-ful) of our radio and TV shows, which have been leaking into space since we first started broadcasting them. Scientists have also sent messages, images and even phonograph records into space in order to show E.T. that humanity isn't just about 'The Lone Ranger' and 'I Love Lucy.'

If there's intelligent life within 100 light years of our planet, it's likely they've already gotten an earful (or antennae-ful, or whatever analogous organ-ful) of our radio and TV shows, which have been leaking into space since we first started broadcasting them. Scientists have also sent messages, images and even phonograph records into space in order to show E.T. that humanity isn't just about 'The Lone Ranger' and 'I Love Lucy.'

A graphic timeline of the twin spacecraft Voyager 1 and Voyager 2, which were launched in 1977. (Los Angeles Times / Images courtesy NASA)

A look back at Voyagers' journey through the solar system

A graphic timeline of the twin spacecraft Voyager 1 and Voyager 2, which were launched in 1977. (Los Angeles Times / Images courtesy NASA)

If other planets were in the place of the moon.

If planets were in the place of the moon…

Most of Voyager's instruments have been shut down, but a few have continued to measure the environment in which it's traveling.

Voyager 1 really has left the Solar System...probably

Most of Voyager's instruments have been shut down, but a few have continued to measure the environment in which it's traveling.

The unmanned Voyager 1 and 2 probes were launched in 1977 on a mission to visit all the outer planets of the solar system. After 35 years in space, the twin probes are approaching the edge of our solar system.

The unmanned Voyager 1 and 2 probes were launched in 1977 on a mission to visit all the outer planets of the solar system. After 35 years in space, the twin probes are approaching the edge of our solar system.

One of the best explanations for the Higgs Bosson. http://www.phdcomics.com/comics/archive/phd021914s.gif

One of the best explanations for the Higgs Bosson. http://www.phdcomics.com/comics/archive/phd021914s.gif

All of Earth's Active Space Missions, in One Cool Infographic

Check out All of Earth's Active Space Missions in One Infographic

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