This just illustrates the vastness of space. I see these representations of all the satellites around Earth, and people are panicking because they think they're all going to crash into each other. But they don't realize these models don't show the relative sizes of the satellites to Earth or the multiple orbital paths around Earth, ranging from about 100 miles to 22,000 miles or so. You've got to think three-dimensionally. That's why it's called space, because there's a lot of space for things up there. Also, there's a lot of distance. As in the OP, Voyager 1 making it to one light day. The closest star to us is about 4.5 light-years away. So, it took Voyager 50 years to do one light day. To make it to the closest star, it would take Voyager 82,125 years. I saw a report the other day that said the closest Earth-like planet is orbiting a star about 40 light-years away. It would take Voyager 730,000 years to get to that one. Humans (homo sapiens) have only been on Earth for about 300,000 years. This is why, even though I believe there is likely some intelligent life out there, just due to the massive number of stars and planets, we will never know for sure and never have contact with it. Even at the speed of light, if we ever manage to achieve that, to get to this closest Earth-like planet would take, obviously, 40 years. And any astronaut going there would probably be at least 65 years old upon arrival, as they'd likely be at least 25 when they left, due to the education and training involved. Despite the billions of stars in our galaxy, there are only about 2,000 stars within 50 light-years distance from Earth, so that cuts the possibility of intelligent life "close" to us down quite a bit.
