Board Thread:Questions and Answers/@comment-4369608-20131102134809/@comment-216.100.90.24-20131104230756

Hopefully you will never experience this fate, as if you have been cut it is likely that your spacesuit has been cut as well, meaning a very painful death.

However, I assume that it would depend on the oxygen content of the blood where you have been cut. If an artery to the body or a vein from the lungs (both oxygen rich) suffer a cut, the blood would probably be reddish, while an artery to the lungs or a vein from the body would produce oxygen-poor blood.

Either way, this will never happen in Minecraft, as 1) there is no blood in Minecraft, and 2) there is no "outer space" either, although if you go high enough you can see both the sun and moon no matter what time of day it is.

- Hugh Garmany from the Book of Notch