Starfox is a member of the long-lived offshoot of humanity known as the Eternals. His body has been enhanced by cosmic energy to the point that it ages far more slowly than most humanoids and is superhumanly strong and resistant to harm and immune to terrestrial diseases. He can withstand impacts, such as falling from several stories or being repeatedly struck with superhuman force, that would severely injure or kill an ordinary human being with little to no injury to himself. However, he is far from invulnerable and can be injured by weapons, such as bullets or knives, composed of conventional materials. His overall resistance to injury is somewhat lower than that of the average Eternal but, like any Eternal, he possesses exceptional healing capabilities. He can harness his cosmic powers to enable himself to fly at supersonic speed. Through the gravimetric potential of his body, which is related to his ability to fly, a tiny shell of air constantly clings to his body. While he needs to breathe like an ordinary human being, he has a reduced need for oxygen allowing him to survive travel through both open space and underwater unaided.