How big is our universe?

 It takes our Sun 250 million years to orbit the Milky Way.

Ultimately, the Milky Way is about 100,000 light-years across and 1,000 light-years thick. Our solar system is located about 26,000 light-years away from the center of the galaxy.

If that's not impressive enough, our star is just 1 of the 200 billion stars in the Milky Way. As such, scientists estimate that there could be as many as 3.2 trillion planets in our galaxy. 

And keep in mind, these are just the numbers for our own tiny galaxy. According to NASA, there are about 2 trillion galaxies in the observable universe.

Learn more:Image credit: Caltech