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Should probably be blue not red

Red is the conventional color for how to depict oxygen. Blue is the conventional color for nitrogen.

The convention is called "CPK coloring" after Robert Corey, Linus Pauling, and Walter Koltun. See http://en.wikipedia.org/wiki/CPK_coloring .

That is lovely but doesn't explain why the mismatch exists between the picture being blue and caption for the picture saying red.

"BIG ICE: Liquid water (left) is composed of hydrogen (white) and oxygen (red) atoms arranged in a nearly tetrahedral structure. Common ice, or Ice Ih (right), shows a three-dimensional network that is less dense, explaining why ice floats on water."

Your are right and it is being corrected.

Phew... I thought this was another case of that conflict like that "what color is this dress?" bruhaha a couple of months ago.

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