Calendar

Full Moon

The Full Moon rises at sunset, and is visible all night. The Vatican Observatory's monthly Full Moon Meetup for Sacred Space Astronomy subscribers is held at 10:00 AM Tucson time.

Moon at Apogee

The Moon’s distance from Earth varies throughout its monthly orbit because the Moon’s orbit isn’t perfectly circular. Every month, the Moon’s eccentric orbit carries it to apogee – its most distant point from […]

Virtual Tour of the Vatican Observatory

Take a virtual tour of the Vatican Observatory's meteorite collection (one of the world’s largest) with the director and former Fordham faculty member Br. Guy Consolmagno, S.J., and alumnus Christopher Kennedy

New Moon

New Moon. By the modern definition, New Moon occurs when the Moon and Sun are at the same geocentric ecliptic longitude. The part of the Moon facing us is completely […]

Moon at Perigee

Every month, the Moon’s eccentric orbit carries it to perigee, the Moon’s closest point to Earth in its orbit – then 2 weeks later, to apogee, its most distant point from Earth.