Space Is Big


Voyage 1 has left the solar system. The probe we launched in 1977 is now beyond the Sun’s solar wind! Nothing we’ve ever launched is farther. And Voyager 1 continues moving away from the Sun at 11 miles per second.

It sounds so distant, nearly 11 billion miles away. Numbers are deceiving. It’s hardly closer to our nearest interstellar neighbor than when it took off!

Proxima Centauri, the star closest to us, is 4.2 light years away. Voyager, after 36 years, isn’t even a full light day distant!

When you read about distant worlds or interplanetary exploration you need to keep these distances in mind. There is nothing we have on the drawing board, or even dream about, which could reach a distant world with humans on board.

Space science is fun, not practical.

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