space in Space

So we've been talking about Space, you know the big dark thing we're all living in, but now I want to take some time to talk about space. You know, space, like, how much space is between here and there. Actually, that's exactly what I'm going to be writing about... how much space (both kinds technecally) is between here, earth, and there, the Crab Nebula. What do you think? Should I use Killometers? Astronomical Units? Light years? You don't know? Then I'll explain. One Km is equal to 3,280.8399 feet (or so), an AU is 150 million Kilometers and a Light year is 63,238.82624 Astronomical Units (or so). Obviously we wouldn't use AU's on Earth and especially not Light years. And wouldn't it take a long time to use Km's in Space? So each measure has a place.

The Crab Nebula is about 6,300 Light years from Earth. It would take 145,728,010,000,000,000 hours to get to it so.... I really don't think humans will reach the Crab Nebula. I dont think people will get there because with a life expectancy of 75 years humans only live about 657,000 hours. That's 221,808,234,000 human

life-times. 145,728,010,000,000,000 hours is 6,072,000,420,000,000 years. Unless we find a way to make a supper human who doesn't have to eat, sleep, drink or go to the bathroom and can live forever, we aren't going to make it there.