International Day of Human Space Flight.
The General Assembly, in its resolution A/RES/65/271 of 7 April 2011, declared 12 April as the International Day of Human Space Flight “to celebrate each year at the international level the beginning […]
Calendar
12 events found.
Mars at Aphelion
Mars will be at the farthest point in its orbit around the Sun on this date - 154,425,919.9 miles.
J. A. Fleming died, 1945 (b. 1849).
Illustration from the Bibliographical Memoirs of Fellows of the Royal Society, 1945. The Royal Society, London. Sir John Ambrose Fleming FRS died in 1945, aged 95 (born 29 November 1849). […]
Last Quarter Moon 2025
The Moon is at Last Quarter (or Third Quarter) – rising around midnight, and visible to the south after sunrise.
International Earth Day
First held in 1970, Earth Day is held annually on April 22 to demonstrate support for environmental protection.
Lyrids Meteor Shower
Peak: ~Apr 21-22, 2020 The Lyrids are a medium strength shower that usually produces good rates for three nights centered on the maximum. These meteors also usually lack persistent trains […]
International Girls in Information and Communications Technology (ICT) Day
On Girls in ICT Day– marked annually on the fourth Thursday in April – the United Nations International Telecommunication Union (ITU) is highlighting the need to promote technology career opportunities for girls and […]
A Jesuit’s Guide to the Stars: Exploring Wonder, Beauty, and Science
Church of Saint Thomas More 1079 Summit Avenue, Saint Paul, Minnesota, United StatesCurious about God, the cosmos and you?You can ask the Pope’s astronomer!Come with your curiosity and questions to hear Brother Guy Consolmagno, SJ, 7:00 pm, Thursday, April 24, 2025, at […]
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.
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 […]
World Day for Safety and Health at Work
The World Day for Safety and Health at Work will focus on addressing the outbreak of infectious diseases at work, in particular, on the COVID-19 pandemic.
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 […]