Science is mystery. A big giant mystery. We know a little small bit of what space is. The other day we watched Bill Nye The Science Guy. While we were watching this certain fact caught my eye. "The closest star to the earth is 900 trillion light years". Since you may not know what light years mean, it means, in one second light can travel around Earth almost four times. Nothing travels faster, establishing light as the ultimate speed limit. Some other facts I learned are "Everyone is made of the same thing we are."Atoms come out of stars when they explode". "One dot in the sky may be billions of stars". I really like watching Bill Nye. We watched it a lot in 5'th grade.