#### How Long Is A Million Days?

There are 365 days in an average year, so to find out how long is a million days, we need to divide 1 million by 365. After that, we can round up to the nearest year to find out how many years is a million days.

#### A Million Day-Making Measurements

The shortest distance traveled by a molecule is about one trillion miles, but that doesn't mean that the longest journey around the world isn't possible. For example, it would take more than a billion RNA molecules to travel from the stars to the moon, but there's a good chance that humans will one day be able to reach Mars with ease, thanks to the latest technology in spaceships.

#### A Billion Year-Making Measurements

As the name suggests, one billion years is quite a milestone in terms of time. In fact, it might just be the smallest unit of time that we know of. For a while, it was the largest denomination of money, but that title now belongs to the quadrillion-dollar bill. The word "billion" is not an American invention, but it's been around for some time in British English. For those of you who aren't familiar, the word "billion" is derived from the Latin mille, meaning one thousand.