Yes how powerful is the Death Star? With a little physics and a little math, we can determine how much power you need to blow up a planet.
Let’s start with what we know. The Death Star can destroy a habitable planet in the galaxy, blasting it into the rubble and debris thrown into space at fantastic speeds. This is one of the central events of the definition of the Star Wars trilogy. In fact, we not only see the planet Alderaan was destroyed in a cataclysmic explosion, but we also saw Han Solo arrive a few minutes later, only to see nothing but a slight “meteor shower”. This indicates that not only was the planet destroyed, but most of its mass and was scattered far from their original location.