Earth Hour is a worldwide movement for the planet organized by the World Wide Fund for Nature (WWF). The event is held worldwide annually encouraging individuals, communities, households and businesses to turn off their non-essential lights for one hour, from 8:30 to 9:30 p.m. towards the end of March, as a symbol for their commitment to the planet.

Speaker: Prof. Suresh Sivanandam, Dunlap Institute for Astronomy & Astrophysics

See: http://en.wikipedia.org/wiki/Messier_marathon

The explosion of a star, or supernova, is one of the most extreme events in the universe, responsible for creating the heavy elements essential for life. The resulting fast moving shock wave, the supernova remnant, produces super high-energy particles called cosmic rays. Understanding the nature of the magnetic fields is crucial to understanding the extreme processes that produce these cosmic rays. This talk will describe Jennifer West's PhD research, which investigates the magnetic fields of supernova remnants and how they are connected to the magnetic field of our Galaxy.

Showtimes: 7:00pm, 8:00pm, and 9:00pm In 1977 two small probes, Voyager 1 and 2, were launched from Earth with a mission to study the outer solar system. Both spacecraft visited Jupiter and Saturn, and Voyager 2 passed by Uranus and Neptune, returning images to Earth which allowed us to make surprising discoveries about these distant planets. Now these probes are entering interstellar space, making them the furthest man-made objects from the Earth!

Speaker: Prof. Ue-Li Pen, Canadian Institute for Theoretical Astrophysics The Algonquin Radio Observatory (ARO), built in 1965, along with the Dominion Radio Astrophysical Observatory (DRAO) are the first to achieve long baseline interferometry (VLBI), whereby two single-dish telescopes are combined to provide the same resolution as a telescope the size of Canada.

Join Professor William Trischuk, U of T Physics, a founding member of the ATLAS experiment, as he discusses his work with CERN and the discovery of the Higgs Boson.

Join us for our monthly recreational astronomy night meeting. This is where our members get to show their latest projects, or give tutorials and tips on just about everything to do with Astronomy. Talks start at 7:30, socializing starts at 7:00.

Day and night are equally long

Let's Talk Science presents a workshop on Astronomy. Learn about the different constellations and discover what stars are made of.

Showtimes: 12:00pm, 1:00pm See the solar system as you’ve never seen it before! Join us for this kid-friendly tour of the highlights of our solar system and beyond. We’ll stop at Mars, Saturn, and Pluto to show you the latest views from spacecraft that have recently visited those places. Then we’ll take you beyond our solar system to investigate where life might hide out there among the stars. There will be lots of opportunity to ask questions of a real astronomer. This show is suitable for children aged six and older.

Showtimes: 10:00am, 11:00am, 12:00pm See the solar system as you’ve never seen it before! Join us for this kid-friendly tour of the highlights of our solar system and beyond. We’ll stop at Mars, Saturn, and Pluto to show you the latest views from spacecraft that have recently visited those places. Then we’ll take you beyond our solar system to investigate where life might hide out there among the stars. There will be lots of opportunity to ask questions of a real astronomer. This show is suitable for children aged six and older.