Total eclipses of the Sun: a pretext for a trip!
English
April 3, 2024
The total eclipse of the Sun on April 8, 2024, observable in southern Québec, is an opportunity to reflect on the rarity of these grand-scale...Read more
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How is the date of Easter determined?
English
March 31, 2021
Written on April 25, 2011 The Easter holiday occupies the center of the ecclesiastical calendar and is used to determine the feast days in the...Read more
Apollo 11’s giant leap
English
July 17, 2019
There are events of such importance that they’re inscribed forever in the history books. The Apollo 11 mission and the first steps on the Moon belong...Read more
How to surf gravitational waves
English
February 18, 2016
Long ago in a galaxy far away, two black holes caught in a gravitational dance merged, causing a disturbance in the force... the gravitational force...Read more
Watch the Moon eclipse the giant star Aldebaran!
English
January 18, 2016
Last year marked the start of a series of 49 occultations of Aldebaran. Each lunar month, from 2015 to 2018, the Moon will pass in front of the V-...Read more
Venus, Jupiter and the Moon: Observe the Best Conjunction of the Year!
English
June 17, 2015
Conjunctions between Venus and Jupiter aren’t all that rare; for example, these two planets, the brightest in the sky, come together every 13 months...Read more
The Moon, a celestial GPS
English
November 20, 2014
The phenomenon known as a lunar eclipse has been understood since ancient times. As observations by astronomers accumulated over the centuries, the...Read more
Saturn, the ringed beauty
English
May 2, 2014
Galileo saw them in 1610 with his primitive telescope, but he believed that the planet was decked out with a pair of ears. Forty-five years later,...Read more
