What Makes a 'Supermoon' Full Moon Super
Supermoons can appear 30 percent brighter and up to 14 percent larger than typical full moons. Learn what makes a big full moon a true 'supermoon' in this Space.com infographic.
Supermoon Over Grand Rapids
A look at full moon of March 19, 2011 over Grand Rapids, Michigan in this photo taken by skywatcher Susan Wagener.
Supermoon: Washington, D.C.
Photographer Sandy Adams snapped this great view of the "supermoon" full moon of March 19, 2011 rising over Washington, D.C.
U.S. Capitol Meet the Supermoon
Photographer Sandy Adams snapped this great view of the "supermoon" full moon of March 19, 2011 over Washington, D.C.
Full Moon Over Amman, Jordan
In Amman, Jordan, skywatcher Ahlam Zayed snapped this photo of the March 19 full moon, the so-called "supermoon" of 2011.
Florida's Supermoon
This view of the "supermoon" full moon of March 19, 2011 was taken by skywatcher Abbe Arenson of Sanford, Fla.
La Luna En Hermosillo
The supermoon full moon of March 19, 2011 rises over the city of Hermosillo, Sonora in Mexico in this photo taken by skywatcher Omar Mendoza.
The Strong Tide
Photographer John Bellm snapped this view of the full moon rising north of Carolina Beach, NC on the Intracoastal Waterway on March 19, 2011 during a supermoon event - while th emoon was at perigee, its closest to Earth in more than 18 years.
Full Moon, Close Up
Skywatcher Phillip Jones took this photo of the full moon on March 19, 2011 from Frisco, Texas.
The Moon Has a Ring
Skywatcher Khartini Musbi caught a stunning ring around the full moon - an atmospheric effect - while moon watching from Kota Kinabalu, Sabah in Malaysia during the March 19, 2011 supermoon.