5.1M views · 102K reactions | This visualization comparing sizes of the Universe is just overwhelming. The scale of the Universe is almost beyond our imagination. In this video, you can find size comparisons of asteroids, moons, planets, and stars. Our sun is the biggest celestial body in our solar system, but wait until you see Arcturus, a star 36.6 light years away. And all those are very tiny compared to TON 618, the biggest black hole in the universe. | The Brain Maze | Facebook

The missions of our New Frontiers Program are already unlocking the secrets of asteroids, Jupiter and the far reaches beyond Pluto. 🛰 Today we'll unveil the next expedition of exploration. Watch the announcement on NASA Science Live at 4pm ET on this page or http://go.nasa.gov/31ROsEh | NASA Solar System Exploration