There is no scientific explanation for how Superman flies that is consistent with our current understanding of physics. However, there are a few theories that have been proposed.

Electromagnetic manipulation: This theory suggests that Superman is able to manipulate the electromagnetic field around him to create lift. This would allow him to fly in a similar way to a bird or an airplane.

Telekinesis: This theory suggests that Superman is able to use his mind to move himself through the air. This would allow him to fly in a similar way to a ghost or a levitating object.

Negative mass: This theory suggests that Superman is able to control negative mass. Negative mass has a gravitational pull that is opposite to the gravitational pull of regular mass. This would allow Superman to fly by creating a force that pushes him up against the pull of gravity.

It is important to note that none of these theories have been proven, and they are all based on speculation. However, they are all interesting theories that could help us to understand how Superman flies.

In the DC Comics universe, Superman’s flight is explained by his Kryptonian physiology. Kryptonians are said to have a “solar aura” that allows them to control gravity and electromagnetism. This allows them to fly, as well as other superhuman abilities such as super strength and heat vision.

Of course, this is all just fiction. In the real world, there is no known way to fly. However, the theories of electromagnetic manipulation, telekinesis, and negative mass are all interesting and thought-provoking ideas.