A teaspoon of water may not seem like much, but if you take the 167,300,000,000,000,000,000,000 water molecules and lay them out in single file, you will have a very skinny line of water that stretches to 31,368,750,000 miles (50 billion km).

For comparison’s sake, that’s ten times the width of the solar system.

For those who want to check the math, you can see the calculations here.