Calendar

Anniversary of the 2013 Chelyabinsk Asteroid Impact Event

On February 15 2013 an asteroid exploded in the sky over the city of Chelyabinsk, in the the southern Ural region of Russia. The shock wave blew out windows all over the city, injuring over 1600 people, and damaged several buildings.

Full Moon

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.

Vernal Equinox

The March equinox marks the beginning of astronomical spring and the end of astronomical winter in the Northern Hemisphere.

Eta-Aquariid Meteor Shower

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. […]

Conjunction of Uranus & the Sun

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.

Summer Solstice

The summer solstice is the day when the Sun appears to reach its highest point in the sky during the year - it marks the start of summer in the Northern Hemisphere.

International Asteroid Day

International Asteroid Day is a United Nations-recognized day observed each year on the anniversary of the Tunguska impact event of June 30, 1908.

Earth at Aphelion

Earth will be at the farthest point in its orbit around the Sun on this date