May 18, 2015 New Moon New Moon May 18, 2015 New Moon A New Moon occurs when the Sun and Moon have the same ecliptical longitude. This is the first phase of the lunar cycle, meaning this celestial body will not be visible in the sky.
May 23, 2015 Saturn at Opposition Saturn at Opposition May 23, 2015 Saturn at Opposition Saturn will be it's closest to Earth in it's orbit and the ringed planet will appear it's fullest and brightest.