Summary:

• **A Star Disappears and Becomes a Black Hole**: Astronomers recently watched something amazing happen in space—a massive star that was visible through telescopes suddenly disappeared and turned into a black hole. A black hole is an object so heavy and dense that nothing, not even light, can escape from it once it gets too close.

• **How Scientists Made This Discovery**: Scientists used special telescopes to observe a star in a distant galaxy, and they noticed it stopped shining and vanished from sight. This is the first time astronomers have actually watched this transformation happen in real-time, which helps them understand how stars end their lives and become black holes.