I was trying to capture a screenshot of a huge asteroid drilling machine that I built to mine an entire asteroid at once, and I accidentally pressed the "record a video" button. Oops! But 2.5 GB later, I decided to upload it to YouTube to show it off to a couple of people.
I'll probably delete it later, but for now, anyone interested can watch it.
Please note that this video isn't catchy or interesting if you have no idea about how the game works. I didn't intend to record it, so I was just messing around. I wasn't trying to impress or show off cool things. I was just exploring options and trying to figure out how things work.