In April 2018, the United Nations General Assembly declared June 3 as International World Bicycle Day. The resolution for World Bicycle Day recognizes "the uniqueness, longevity and versatility of the bicycle, which has been in use for two […]
Shavuot (listen (help·info)), or Shavuos (listen (help·info)) in some Ashkenazi usage (Hebrew: שָׁבוּעוֹת, Šāḇūʿōṯ, lit. "Weeks"), commonly known in English as the Feast of Weeks, is a Jewish holiday that occurs on the sixth day of the Hebrew month of Sivan (in the 21st cenutury, it […]
The Moon is at First quarter on this date -it will be visible high in the southern sky in early evening.
Feast of the Holy Trinity, also called Trinity Sunday, Christian feast in honour of the Trinity, celebrated in Western liturgical churches on the Sunday following Pentecost (the 50th day after Easter). - britannica.com
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.
Charles Babbage (1791-1871), computer pioneer, designed two classes of engine, Difference Engines, and Analytical Engines. Difference engines are so called because of the mathematical principle on which they are based, […]
Join us for our Full Moon Meetup! Our guest will be Prof. Stephen Barr, founder & president of the Society of Catholic Scientists!
Mercury's 88-day orbit around the Sun will carry it to its furthest point to the Sun – its aphelion – at a distance of 0.47 AU.
The Moon is at Last Quarter (or Third Quarter) – rising around midnight, and visible to the south after sunrise.
On this day, Mars it closest to the Sun in its orbit.
The summer solstice is the day when the Sun appears to reach its highest point in the sky during the year - it marks the start of summer in the Northern Hemisphere.
