Period blood color can change from bright red to dark red, pink, or brown at different points during menstruation, though it's not typically an indicator of your overall health. Color can change with ...

In 1911, Australian geologist Thomas Griffith Taylor discovered the Blood Falls—an odd, blood-red flow of saltwater seeping out from the tip of East Antarctica. Researchers later confirmed the color ...

This week's full moon will come with a special treat – a total lunar eclipse, which will turn the moon a spooky blood red color. While the eclipse will last from 1:47 a.m. EDT to 4:10 a.m. EDT Friday ...

The full moon in March, sometimes called the worm moon, coincides with a lunar eclipse that brings a blood-red color in many parts of the world. This is a photo gallery curated by AP photo editors.