Calendar

Anniversary of the 2013 Chelyabinsk Asteroid Impact Event

On February 15 2013 an asteroid exploded in the sky over the city of Chelyabinsk, in the the southern Ural region of Russia. The shock wave blew out windows all over the city, injuring over 1600 people, and damaged several buildings.

First Quarter Moon

The Moon is at First quarter on this date -it will be visible high in the southern sky in early evening.

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.

Last Quarter Moon

The Moon is at Last Quarter (or Third Quarter) – rising around midnight, and visible to the south after sunrise.

James Dewar, died 1923

Sir James Dewar FRS FRSE (20 September 1842 – 27 March 1923) was a British chemist and physicist. He is best known for his invention of the vacuum flask, which he used in conjunction with research into […]

Val Logsdon Fitch, born 1923

Val Logsdon Fitch (March 10, 1923 – February 5, 2015) was an American nuclear physicist who, with co-researcher James Cronin, was awarded the 1980 Nobel Prize in Physics for a 1964 experiment using the Alternating Gradient Synchrotron at Brookhaven […]

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 […]

Fr. Eusebio Kino SJ, died 1711

Eusebio Francisco Kino, SJ (Italian: Eusebio Francesco Chini, Spanish: Eusebio Francisco Kino; 10 August 1645 – 15 March 1711), often referred to as Father Kino, was a Tyrolean Jesuit, missionary, geographer, explorer, cartographer and astronomer born in the Territory of the Bishopric of Trent, then part […]

First Quarter Moon

The Moon is at First quarter on this date -it will be visible high in the southern sky in early evening.

St. Patrick’s Day (Ireland)

Saint Patrick's Day, or the Feast of Saint Patrick (Irish: Lá Fhéile Pádraig, lit. 'the Day of the Festival of Patrick'), is a cultural and religious celebration held on 17 March, the traditional death date […]