 To understand how marvelous our universe is, we first have to look at the universe as a whole, which is 92 billion light-years in diameter, and that's just the observable universe. If we zoom in even closer, we find the Laniakea Supercluster, which stretches across space at more than 500 million light-years and contains about 100,000 large galaxies. On the outskirts of the Laniakea, we find the Virgo Supercluster, stretching across at about 110 million light years and containing more than a million galaxies. And the Virgo Supercluster in turn contains the local group, a 10 million light-year collection of galaxies including the Milky Way, our home, along with two beautiful views of our closest neighbor galaxy, Andromeda or M31, whichever name you prefer to call it. But let's ignore all the other galaxies and just focus on the Milky Way, a 100,000 light-year wide collection of an estimated 100 to 400 billion stars. In the Milky Way lies our home planet Earth, a giant magnet which is about 8,000 miles wide. In short, we are just a speck in a grand, marvelous universe filled with mysteries we unlock using science, and science is what we like to explore here on the interesting universe. So if you're on a quest to understand the universe, then hit that subscribe button.