People watch the sunset from the top of a hill as the full moon rises behind them Sunday, Jan. 20 2019, in Lisbon. (Armando Franca/AP Photo)
The moon fully shadowed by the Earth is seen above the castle of Salgo during a total lunar eclipse near Salgotarjan, Hungary, early Monday, Jan. 21, 2019. (Peter Komka/MTI via AP)
This combination photo shows the totally eclipsed moon, center, and others at the different stages during a total lunar eclipse, as seen from Los Angeles, Sunday, Jan. 20, 2019. (Ringo H.W. Chiu/AP Photo)
A blood moon rises above Christ the Redeemer statue during a lunar eclipse in Rio de Janeiro, Brazil, Monday, Jan. 21, 2019. (Leo Correa/AP Photo)
A woman stands watching the full moon, at the City Life neighborhood, early Monday Jan. 21 2019, in Milan, Italy. (Luca Bruno/AP Photo)
Viewer Sarah Osuch Bogli shared photos of the wolf moon from Louisburg, N.C. (Sarah Osuch Bogli)
Viewer Sarah Osuch Bogli shared photos of the wolf moon from Louisburg, N.C. (Sarah Osuch Bogli)
A lunar eclipse progresses behind statues on the roof of the State Hermitage Museum in St.Petersburg, Russia, Monday, Jan. 21, 2019. (Dmitri Lovetsky/AP Photo)
The full moon is seen after a lunar eclipse in Marseille, southern France, early Monday Jan. 21 2019. (Claude Paris/AP Photo)
The moon is seen in its waxing gibbous stage as it rises behind the Empire State Building, Sunday, Jan. 20, 2019, seen from Jersey City, N.J. (Julio Cortez/AP Photo)
A U.S. Flag in downtown Washington flies in front of the moon during a lunar eclipse, Sunday, Jan. 20, 2019. (J. David Ake/AP Photo)
The supermoon sets over Larissa, the ancient and medieval acropolis of Argos, one of the oldest cities in the world, early Monday, Jan. 21, 2019. (Petros Giannakouris/AP Photo)
The moon is framed in a statue on the state Capitol during a total lunar eclipse Sunday, Jan. 20, 2019, in Sacramento, Calif. (Rich Pedroncelli/AP Photo)