You could fit the entire human race into a sugar cube — and 13 other facts to put the universe into perspective

The universe is a crazy place. In fact, it's probably the craziest place you've ever been.

It's full of exploding stars and immortal jellyfish and it's been kicking around for almost 14 billion years.

Here are 14 awesome facts to put it all into perspective.

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If you unraveled all of the DNA in your body, it would span 34 billion miles, reaching to Pluto (2.66 billion miles away) and back ... six times.

Source: Business Insider

Almost all of ordinary matter (99.9999999% of it) is empty space. If you took out all of the space in our atoms, the entire human race (all 7 billion of us) would fit into the volume of a sugar cube.

Source: Symmetry

Many of the atoms you're made of, from the calcium in your bones to the iron in your blood, were brewed up in the heart of an exploding star billions of years ago.

Source: PBS