TM Chapter 72

Corrosive Thunder (侵蝕の雷, Shinshoku no Kaminar) is the ninety-second chapter of the Trigun manga. It is also the seventy-second chapter of Trigun Maximum.

Summary
The spaceship is in complete shock on how such a large mass as the Ark was able to warp in order to avoid the beam fired at it. Back on the planet, the Ark sheds most of its mass and begins its counterattack against the spaceship as the people of December start to riot. A single tentacle from the Ark manages to an extent itself beyond the planet's atmosphere and nearly reach the spaceship.