A total lunar eclipse will be visible tonight across the Western Hemisphere, for those willing to stay up late.

Unable to view our graphics? Click here to see them ... which is when the Earth lines up exactly between the moon and the sun ...

For the first time in three years, America will be treated to a total lunar eclipse on Thursday and Friday when the Sun, ...

Unable to view our graphics? Click here to see them ... lines up exactly between the moon and the sun, the moon appears darker because the Earth obscures the sun with its shadow.