Sunlight

Sunlight was light given off by a star. The term was most often used to describe light from a planet's sun. Sunlight occurred during the daytime, and an absence of sunlight on a planet's surface was known as nighttime. (PROSE: Dragonfire)

Plants made oxygen from sunlight, which made it possible for life to exist on Earth. (AUDIO: Exploration Earth)

The Sun's light was ultraviolet in nature, and repelled Saturnyns. (TV: The Vampires of Venice)

Svartos was a planet that was tidally locked, with one side permanently in the sunlight of its nearby star and the other permanently in the dark. (PROSE: Dragonfire)

As part of a ruse to lure the Thals into their city on Skaro, the Daleks claimed to be able to grow vegetables using artificial sunlight. (TV: The Daleks)

After being infected by the DNA of Rose Tyler, Rose stopped the Ninth Doctor from murdering the Dalek, its casing now open, by claiming it just wanted to feel the sunlight. (TV: Dalek)

In 2018, Ramón Salamander used his sun store technology which guided sunlight to help crops grow, thus helping people get more food. (TV: The Enemy of the World)

The planet Midnight orbited a sun which gave off X-tonic rays. (TV: Midnight)