Space Shuttle Discovery launched with Hubble Space Telescope, 1990
The Hubble Space Telescope was launched into orbit aboard the Space Shuttle Discovery on April 24, 1990.
The Hubble Space Telescope was launched into orbit aboard the Space Shuttle Discovery on April 24, 1990.
Mercury's 88-day orbit around the Sun will carry it to its closest point to the Sun – its perihelion – at a distance of 0.31 AU from the Sun.
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 Full Moon rises at sunset, is visible high in the sky around midnight, and is visible all night.
Supermoon: Full Moon at the Moon's perigee - the Moon's closest point to Earth in its monthly orbit.
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.
Uranus will pass close to the Sun in the sky as its orbit carries it around the far side of the solar system from the Earth.
May Day is a public holiday usually celebrated on 1 May or the first Monday of May. It is an ancient festival of spring and a current traditional spring holiday in many European cultures. Dances, singing, and cake are […]
The Moon is at Last Quarter (or Third Quarter) - rising around midnight, and visible to the south after sunrise.
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. […]
The Moon appears near the planet Jupiter in the southeastern predawn sky on this date.