Hi! Before we jump into the script for this TikTok, I think it's worth explaining how this video came about. In the final year of my...

If our universe is infinitely old and infinitely large, then why is the night sky so dark? This is Olbers' paradox, named after german...

Our universe is like any other object, and so has to have a shape. There are three possible shapes our universe can be: Positively curved...