An intrepid group of astronauts: Reed Richards, Sue Storm, Johnny Storm and Ben Grimm, originally received their powers after being exposed to an immense amount of cosmic radiation during a trip into space. Mutated and given strange powers by this exposure, they became the Fantastic Four and dedicated the use of their powers for the benefit of humanity.
Reed Richards found he has the ability to stretch his body in any way he wanted, while Susan Storm can turn herself, objects and other people invisible. Ben Grimm transformed into a rocky, super-strong behemoth and Johnny Storm has the ability to set himself on fire
Mike Mignola’s Fantastic Four