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Tullio Levi-Civita, born 1873

Tullio Levi-Civita, ForMemRS (English: /ˈtʊlioʊ ˈlɛvi ˈtʃɪvɪtə/, Italian: ; 29 March 1873 – 29 December 1941) was an Italian mathematician, most famous for his work on absolute differential calculus (tensor calculus) and its applications to the theory of relativity, but who […]

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 […]

April Fools Day.

April Fools' Day or April Fool's Day (sometimes called All Fools' Day) is an annual celebration on April 1, commemorated by practical jokes and hoaxes. The player(s) of the joke(s) or hoax(es) often exposes their action by […]

An Evening With the Pope’s Astronomer – Jones Day

Jones Day New York Brookfield Place, 250 Vesey Street, New York, NY, United States

Spend an evening with Br. Guy Consolmagno - Director of the Vatican Observatory, and President of the Vatican Observatory Foundation. Br. Guy will discuss his new book A Jesuit's Guide […]

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.