International Earth Day
First held in 1970, Earth Day is held annually on April 22 to demonstrate support for environmental protection.
First held in 1970, Earth Day is held annually on April 22 to demonstrate support for environmental protection.
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 […]
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.
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.
The Moon is at Last Quarter (or Third Quarter) – rising around midnight, and visible to the south after sunrise.
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 […]
The Eta Aquariids are a strong shower when viewed from the southern tropics. From the equator northward, they usually only produce medium rates of 10-30 per hour just before dawn. […]
On this day, Mars it closest to the Sun in its orbit.
Mercury will reach its greatest separation from the Sun on this date.
Vatican Observatory 2025 astrophoto calendars now available for purchase in our e-store!