Cosmology

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

The Milky Way galaxy has somewhere around a few hundred billion stars. Some of those are stars like our Sun,

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

Did you know that some nebulae stretch hundreds of light-years across? Imagine a cosmic artist splattering clouds of gas and