A black hole is a region in space where the gravitational pull is so strong that nothing, including light, can escape from it. It is formed when a massive star dies and collapses in on itself.
An event horizon is the boundary of a black hole, where the gravitational pull becomes so strong that even light cannot escape. This marks the point of no return for anything that gets too close to a black hole.
Black holes are formed when a massive star dies and its core collapses under its own gravity. This can also happen when two smaller black holes merge together.
Contracting confusion is a phenomenon where an object appears to be contracting and shrinking as it approaches a black hole's event horizon. This is due to the extreme gravitational pull and distortion of space-time near a black hole.
No, nothing can escape from a black hole once it has passed the event horizon. This includes light, making black holes invisible to the naked eye. However, some particles can escape through a process called Hawking radiation, but this is very rare and difficult to detect.