Can Kurama Destroy a Planet?

He can most likely destroy a planet but not that easily. He would still transform into new forms in order to get stronger. Kurama Ashura mode isn't enough to crush 10% of the earth.

Can Sasuke destroy planets?

Just like Naruto Uzumaki, Sasuke Uchiha, too, is an incredibly powerful shinobi. He's honed his skills to the point where he's an equal to Naruto Uzumaki in the current storyline in Boruto. Like Naruto, Sasuke is also capable of fighting and defeating the Otsutsuki Gods who can destroy planets at will.

Is Naruto a planet buster?

That means that BOTH Naruto and Sasuke are complete planet busters. ... That makes this attack strong enough to destroy small planets were it to ACTUALLY hit the planet.