No. The scale is galactic, not planetary.

So it's even worse: the Galactic Empire has built an even bigger Death Star which can destroy an entire star (or cause it to collapse into a black hole)?

No, now you've confused SciFi universes. Red Matter is a Star Trek plot.

No, I'm not confused at all. There is no "red matter" in Star Trek.

Are you one of those people who continues to insist falsely that there was more than 1 Matrix movie, or more than 3 Star Wars movies?