The Mighty World of Marvel #64

In "The Brute Battles On!", the Hulk finds himself caught in a galactic conflict when enslaved aliens rise up against their tyrannical ruler, the Galaxy Master. As the Hulk joins their fight to destroy a monstrous alien threat, his victory sets off a chain of events that send him hurtling back to Earth—only to face a new peril when the rocket’s faulty decompression leaves Bruce Banner stranded in the vacuum of space, struggling to survive in his vulnerable human form.