|If you got cut out in space, what color would your
blood bleed out as?|
|Question Date: 2013-11-05|
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.
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:
here to read
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
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