It's hard to imagine the scale of space, but here's a size comparison of the largest star in the universe.
This video is so good! As we know, there is an uncountable number of stars in the known universe, never mind how many are beyond that. We also know that they're all very far away from our very own Sun. The problem is that because they're so far away, we struggle to understand how big some of them are.
Fortunately for us, the YouTube channel, Kurzgesagt – In a Nutshell, is very good at helping us understand. Not only that, but they also explain the various types of stars out there and how they function.
And, with the help of a brilliant animation department, we can see what they are explaining. The sheer size of what is thought to be the biggest star we've observed is mindblowing. It truly is massive. In fact, if you replaced our Sun with it, it would swallow up Mercury, Venus, Earth, Mars, Jupiter and Saturn. The fastest aeroplane we've ever made, the Lockheed SR-71 would take around 500 years to fly around it once.
It's called Stephenson 2-18, it's 2,150 times bigger than our Sun, and is almost half a million times brighter too. To find out more, then smash the play button on the video below. You may even learn something that makes you seem smart at your next dinner party.