Blue sun may refer to:
- A star with a suitable spectral type, O
- Blue Sun Corporation: a fictional corporation in the Firefly television series.
Famous quotes containing the words blue and/or sun:
“The blue we bathe in is the blue we breathe. The blue we breathe, I fear, is what we want from life and only find in fiction. For the voyeur, fiction is what’s called going all the way.”
—William Gass (b. 1924)
“If you have wit, use it to please, and not to hurt; you may shine, like the sun in the temperature zones, without scorching. Here it is wished for; under the Line it is dreaded.”
—Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)