What would cause a Planet to Explode

just wondering?

a supernova?

Arguably you could say that the Earth would 'explode' if enough nuclear bombs were detonated at the same time.

It wouldn't completely destroy the planet however. A desolate core would likely remain, and cool to form a much smaller planet.

nothing. things can destroy a planet by crushing it but exploding it? no. many things can destroy earth. huge comets, possible other planets (if our galexy runs into another one billions of years later), and dark matter to name a FEW

There is no geological reason why this would happen. The force of gravity would tend to keep a planet very tightly together.

Planets do not explode.
Sometimes they collide with other bodies.
.

Nothing. Planets don't explode. Except in the movies.

Like freaking huge space-whale planting dynamite in his ex's home planet. Maybee (:

Intense pressure following the collapse of the inner core.

There is no natural event that would cause a planet to explode

A giant laser beam from the Death Star... duh!