Solar energy absorption

 is a super-power. There are many beings, creatures and even items that can absorb ultraviolet radiation for a variety of purposes. This power is most often found in the Kryptonian physiology of characters from the planet Krypton as seen in comic books published by DC Comics.

Under optimal conditions, this is the main source of a Kryptonian's super powers. They are contingent upon exposure to solar radiation from a yellow sun star system. A Kryptonian's biological make up includes a number of organs which lack analogues in humans and whose functions are unknown. Yellow solar energy is stored for later use, which also allows for the use of these powers to fade when yellow solar radiation is not available rather than immediate failure.