• Birmingham Lecture – Holy Name Cathedral

    Exploring Wonder, Science, Beauty & Faith - a perspective from Br. Guy Consolmagno, SJ. When: Monday, April 20, 2026 - 6:30-8:30 pm Where: 735 North State Street, Chicago, IL 60611 Free parking is available in the Holy Name Cathedral lot, 14 West Superior, 111 & 112 Registration Required Hosted by: * The Illinois Patrons of […]

  • International Earth Day

    First held in 1970, Earth Day is held annually on April 22 to demonstrate support for environmental protection.

  • International Chernobyl Disaster Remembrance Day

    An explosion at the Chernobyl Nuclear Power Plant in 1986 spread a radioactive cloud over large parts of the Soviet Union; millions of people in the three countries were exposed to the radiation.

  • Full Moon 2026

    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.

  • Cinco de Mayo

    Mother's Day in the United States is an annual holiday celebrated on the second Sunday in May. Mother's Day recognizes mothers, motherhood and maternal bonds in general, as well as the positive contributions that they make to society. It was established by Anna Jarvis, with the first official Mother's Day celebrated through a service of worship at St. Andrew's Methodist […]

  • Mother’s Day (USA)

    Mother's Day in the United States is an annual holiday celebrated on the second Sunday in May. Mother's Day recognizes mothers, motherhood and maternal bonds in general, as well as the positive contributions that they make to society. It was established by Anna Jarvis, with the first official Mother's Day celebrated through a service of worship at St. Andrew's Methodist […]

  • Ascension

    The Ascension Day of Jesus Christ always falls on a Thursday - it is the day when Christians celebrate the ascension of Jesus Christ into heaven as recorded in the Bible.

  • 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 in shadow then. Pictured here is the traditional New Moon, the earliest visible waxing crescent, which signals the start of a new month in many […]

  • World Metrology Day.

    World Metrology Day is an annual celebration of the signature of the Metre Convention on 20 May 1875 by representatives of seventeen nations. The Convention set the framework for global collaboration in the science of measurement and in its industrial, commercial and societal applications. The original aim of the Metre Convention - the world-wide uniformity […]