From wikipedia:
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
occassion, 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 absorbtion 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.