The Star Trek reboot also did this.
But Star Wars already did it in the 70's come to think of it.
In Guardians of the Galaxy 2, Peter's Dad is revealed to be Ego the Living Planet and they end up destroying him in the end (the planet doesn't really explode; it kind of disintegrates into itself, but close enough).
Pish Sam Carter and Rodney blew up entire solar systems as well as the odd planet
They did that once or twice in a spin-off series.