From The Marvel Database: http://www.marveldatabase.com/Silver_Surfer_%28Norrin_Radd%29
Superhuman Strength: The Surfer possesses tremendous physical strength, the exact limits of which are unknown. He can use his powers to enhance his strength beyond its limits, enabling him to lift in
excess of 100 tons.
Invulnerability: The Silver Surfer's silvery "skin" was designed to easily withstand the rigors of deep-space travel, and thus far, it has proven to be virtually indestructible. In fact, his entire body was
made highly resistant to injury and he is thus almost invulnerable to most types of physical harm. The Silver Surfer can withstand the crushing pressures of a black hole and can easily withstand great extremes in temperature. He is unbothered by the friction associated with atmospheric re-entry, and has withstood plunges into stars and
even supernovae. He also routinely weathers the stresses associated with high-speed travel through space and hyperspace. His body is sustained by cosmic energy, and thus the Surfer has no need for air, food, or water. His brain, however, still occasionally requires sleep, although not nearly as often as humans do.
Godlike Stamina: The Surfer's highly enhanced musculature generates virtually no fatigue toxins, granting him nearly inexhaustible physical stamina. However, he does require sleep on occasion, due to his brain's biological need to dream.
The Power Cosmic: The Silver Surfer possesses the Power Cosmic which was granted to him by Galactus. He has the ability to absorb and tap ambient cosmic energy into his body at will, and expel those
energies violently, or in more subtle ways. He can channel beams of energy through his hands with sufficient destructive force to destroy a planet, or wield the energies with such finesse as to restructure the molecules of the natural dyes within a plant to change its color. The Surfer can rearrange matter to create other configurations and can even transmute elements. (such as turning a steel napkin holder into solid gold or tons of rock into harmless gas) Other uses of the Power Cosmic have included the ability to phase through objects, accelerate the
evolution of lifeforms (even on a planet wide scale), see the past by peeling back the layers of time, time travel, trans-dimensional travel, the manipulation or absorption of any form of energy or radiation, and granting limited cosmic powers to others. Essentially, the Power Cosmic gives the Surfer mastery over the four fundamental forces of the universe.
Cosmic Senses: The Surfer's senses were enhanced by Galactus, which allow him far-ranging vision (in space he can see people clearly over a light year away), the ability to see sub-atomic particles, superhuman hearing, the ability to detect fields, traces, and concentrations of energy and discern their natures. He also has an
affinity for the life-energies of living beings, and can use his cosmic energies to boost the natural healing powers of a wounded individual, even if they are near-death. He cannot, however, raise the dead.