One of your favorite tech activities -- sitting -- will kill you

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Blood moon -- the sequel: Coming to a sky near you

NEW: The full eclipse has ended
This blood moon is the size of a super moon, more than 5% larger than the last blood moon
It is the second in a series of four -- called a tetrad
Tetrads can be rare; for a 300-year stretch, there were none




We want to see your shots of the blood moon! Share your best photos with iReport, and you could be featured on CNN.
(CNN) -- Sequels are usually a disappointment. But not this time, not with this heavenly body.
People throughout the United States had a fr

More about → Blood moon -- the sequel: Coming to a sky near you