"Space is big. Really big. You just won't believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space."
That quote is how Douglas Adams opens his classic work "The Hitchhiker's Guide to the Galaxy," and despite its humorous take, it's actually true. There really is no way to visualize just how huge the universe is - even our own solar system is too big to imagine.
That's why even through there are millions of objects flying around in our corner of the solar neighborhood, it's very rare for them to run into each other. And that's a good thing for us Earthlings.
Now I'm sure you've seen the disaster movies where asteroids hit the Earth, and - for once - Hollywood isn't exaggerating what would happen.
It's also why there's such a fuss when something even comes close to Earth, like the asteroid 2014 RC.
Asteroid 2014 RC is around 60 feet long, which is the same size as the meteor that hit Russia back in 2013. That one injured 1,500 people and caused plenty of property damage. Here are the stunning videos of its trip through the atmosphere and aftermath.
Fortunately, 2014 RC isn't going to hit us, but it will pass just outside geosynchronous orbit on Sunday. Incidentally, geosynchronous orbit is where many Earth satellites, including our GPS satellites, hang out.
Another way to look at it, is that at its closest point 2014 RC will only be a tenth of the distance between us and the Moon. Unfortunately, without a telescope you still won't be able to see it.
Still, astronomers and other scientists will be studying it closely to learn more about asteroids and the solar system.
And for fun, don't forget that there's a live video stream from the International Space Station and NASA is looking for people to help identify objects in space images.