Jupiter's Moons: Family Portrait This montage shows the best views of Jupiter's four large and diverse "Galilean" satellites as seen by the Long Range Reconnaissance Imager (LORRI) on the New Horizons spacecraft during its flyby of Jupiter in late February 2007. The four moons are, from left to right: Io, Europa, Ganymede and Callisto. The images have been scaled to represent the true relative sizes of the four moons and are arranged in their order from Jupiter.
The largest of this year’s supermoons will occur on June 23, within 22 minutes of the Moon’s perigee on the same day. June’s supermoon coincides with the Moon’s closest approach to Earth until August 10, 2014. Finally, July’s full Moon will rise on July 22, one day after that month’s lunar perigee.