Black holes are some of the most fascinating celestial bodies in the universe. Most of us have probably heard of black holes before, but hardly anyone knows what they really are, even scientists! In this blog we will go over the basics needed to understand black holes such as how they are measured, how big they really are, and the differences between mass, size, and density! This will be the background information for part two of this blog which will explain how black holes are created and their anatomy. Enjoy!

It may surprise you to know that there are species of spiders that share the same common name but have completely different anatomy, venom, and lives! There are so many of these spiders that this blog will be divided into several parts. This first one will focus on the differences amongst a few funnel web and funnel weaver spiders!