In Los Angeles, the chance to view the total lunar eclipse lured thousands to the Griffith Observatory.
Families spread out blankets on the grass to take in views from dozens of telescopes set up like a stand of small trees.
If you missed it, there will be more opportunities. It's the first in a series of four consecutive total lunar eclipses known as the tetrad.
The phenomenon will repeat itself three more times in six-month intervals ending in September 2015.
The director of the observatory put that into perspective.
"The fact that there are four total lunar eclipses in succession, coming this year and the next, is unusual. I mean, we haven't seen that kind of thing for centuries. But, it is not the kind of thing that astronomers get worked up about, per se. It doesn't really mean anything than it's just the chance arrangement of gravity and the motion of the objects in the solar system -- primarily the earth and the moon of course in this case," said Dr. Ed Krupp, Griffith Observatory
The next blood moons will be October 8 of this year, then April 4 and September 28 of next year. Miss those, and you'll have to wait until 2032.
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