International Asteroid Day

An asteroid is a body of rock that orbits the sun. Large numbers of asteroids are found between the orbits of Mars and Jupiter. International Asteroid Day, founded in 2016, is to observe each year at the international level the anniversary of the Tunguska impact over...

International Chernobyl Disaster Remembrance Day

The 1986 accident at the Chernobyl nuclear power plant in Ukraine (then part of the former Soviet Union) was attributed to severe design flaws in the Soviet-era reactor and human error. 31 people died within a few weeks from the steam explosion, exposure to radiation...