Once birch and a few scientists got to the nearby facility, Birch saw in the distance, Luna massively growing. Increasing her size and width, she grows as the city below her get crushed by her paws. Every second Luna grows 50x bigger with a tremendous growth spurt. Then birch was able make it in the facilities bunker and hide before he gets crushed by Luna's paw. When Luna was able to get to space, her lungs mutated, and she was able to breath in space.

Luna ©aspenwinterhorn
Rest of comic ©Silvallier