UCSB Science Line
Sponge Spicules Nerve Cells Galaxy Abalone Shell Nickel Succinate X-ray Lens Lupine
UCSB Science Line
Home
How it Works
Ask a Question
Search Topics
Webcasts
Our Scientists
Science Links
Contact Information
If you got cut out in space, what color would your blood bleed out as?
Answer 1:

There's a misconception that blood is blue when it is de-oxygenated, or without oxygen. This isn't true. Yes, blood changes its color a little bit when it is de-oxygenated but at no point is it completely blue in your body. When you look at your arm your veins seem bluish-green because the light that bounces off other tissues and skin make them appear that way. So, in space your blood would still be red if you got cut, it may be a different shade of red, but it will still be red.


Answer 2:

If you had a cut out in space, just like if you were cut here on earth, your blood would be red. Your blood is always red. It can be different shades of red, but always certainly red. There is a myth out there that de-oxygenated blood is blue. This is in fact false. For more detail please see the answer to this question:

click here to read

Answer 3:

The blood with still be red, specifically the color of rust, which is the color that iron in blood makes when bonded to oxygen. The water in your blood would evaporate (indeed, boil), so it would look basically like boiling blood on a stove.



Click Here to return to the search form.

University of California, Santa Barbara Materials Research Laboratory National Science Foundation
This program is co-sponsored by the National Science Foundation and UCSB School-University Partnerships
Copyright © 2015 The Regents of the University of California,
All Rights Reserved.
UCSB Terms of Use