Skywatchers had something to howl about on Sunday: a supermoon total eclipse. Not only was it the best and last opportunity of the year for Americans to witness any kind of eclipse, but this particular phenomenon is extremely rare, happening perhaps five times a century. The last supermoon eclipse was in 1982, and there won’t be another until 2033.
Beginning at 8:11 p.m. Eastern (5:11 p.m. Pacific), the moon — currently full and at the closest point in its orbit, making it an extra-large, extra-bright “supermoon” — entered the shadow of the Earth, darkening it until only light refracted around the planet falls on its surface. The redness of this light gives the moon a rusty color, resulting in the nickname of this type of eclipse: a “blood moon.”
Read more at NBCNews.com.