There were lots of enemy ships and I haven't been focusing on the tutorial robot voice which was saying something about being turned inside out, which apparently happened to me. But I didn't hear what it said and I didn't see anything around that could have caused this. There were frequent moments of screen getting darker and darker until it suddenly turned to death camera and I was out on the main screen. What happened?
The screen getting darker is indicating that you're flying near a black hole.
You can see the screen getting darker as I fly around a black hole.