Independence Day (USA)
Independence Day is a U.S. federal holiday commemorating the Declaration of Independence of the United States, on July 4, 1776.
Calendar
22 events found.
NASA’s Pathfinder lands on Mars, 1977
Mars Pathfinder was launched December 4, 1996 and landed on Mars' Ares Vallis on July 4, 1997.
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.
Full Moon Zoom with Sean van Staden, S.J.
Virtual Event
Join us on July 10th for our next Full Moon-th On-line Meetup! Our guest will be Sean van Staden SJ., a Jesuit scholastic about to begin his Theology studies at Hekima College in […]
Mercury at Aphelion
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.
Last Quarter Moon 2025
The Moon is at Last Quarter (or Third Quarter) – rising around midnight, and visible to the south after sunrise.
Thomas Kuhn born 1922
Thomas Samuel Kuhn (1922–1996) is one of the most influential philosophers of science of the twentieth century,
Last Quarter Moon
The Moon is at Last Quarter (or Third Quarter) – rising around midnight, and visible to the south after sunrise.
J. G. Mendel born 1822
Gregor Johann Mendel (1822– 1884) was a biologist, meteorologist, mathematician, Augustinian friar and abbot of St. Thomas' Abbey in Brünn (Brno), Margraviate of Moravia.
New Moon 2025
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 […]
St. Ignatius Loyola, Founder of the Jesuits.
Ignatius of Loyola (Basque: Ignazio Loiolakoa; Spanish: Ignacio de Loyola; Latin: Ignatius de Loyola; c. 23 October 1491 – 31 July 1556) was a Spanish Basque Catholic priest and theologian, who co-founded the religious order called the Society of Jesus (Jesuits) and became its first Superior General at […]
First Quarter Moon 2025
The Moon is at First quarter on this date -it will be visible high in the southern sky in early evening.
St Dominic, Patron of Astronomers, d. 1221
The liturgical celebration of St Dominic is on August 6 which is his deathday, in 1221 - his birthday is August 8.
Many sources state that St Dominic is the patron saint of astronomy and astronomers.
Perseids Meteor Shower
The Perseids are the most popular meteor shower as they peak on warm August nights as seen from the northern hemisphere. The Perseids are active from July 17 to August 24, peaking on August 12 - 13.
Assumption of the Blessed Virgin Mary
The Assumption of the Blessed Virgin Mary is, according to the beliefs of numerous Churches, the bodily taking up of Mary, the mother of Jesus, into Heaven at the end of her earthly life. The analogous feast […]
Labor Day (USA)
Labor Day is a federal holiday in the United States celebrated on the first Monday in September in any given year (i.e. a single day from September 1 through September 7) to honor and recognize […]
Frank Drake died, 2022 (b. 1930)
Frank Donald Drake (May 28, 1930 – September 2, 2022) was an American astronomer and astrophysicist. He was involved in the search for extraterrestrial intelligence, including the founding of SETI.
Autumnal Equinox
Fall begins with the autumnal equinox - in the Northern Hemisphere, it's the September equinox; in the Southern Hemisphere, it is the equinox in March.
Astronomy at the Beach 2025
Island Lake State Park @ Island Lake State Recreation Area, 6301 Kensington Rd, Brighton, MI 48116, USABr. Guy Consolmagno will be the keynote speaker at Michigan's largest free astronomy event - both Fri. and Sat.!