Cosmology

We humans live in the Milky Way Galaxy, and our Earth and the entire Solar System are a very small

A nebula and a galaxy may look surprisingly similar in photos but they are two very different things. Shortly, a

I had a lengthy article about how big is the observable universe and what is the observable universe previously. In

When a medium-sized star like our Sun gets old and dies, it sheds its outer layers in a glowing gas.

By now, we know that space has a lot of gas, dust, and darkness. A nebula is just one of

Ever looked up at the night sky and thought, “Okay, but… how big is all this, really?” what exists beyond

Have you ever wondered how our solar system came into existence? How did our whole solar system get started? Through

Have you ever wondered what the limit of what we can see out there in the sky is in the