Ellen Zweibel, University of Wisconsin-Madison

Witness Earth like never before. Through telescopic lenses positioned in deep space that are trained on the peaks of the Himalayas, the African savannas, the hyper-paced streets of Tokyo and the vastness of the cosmos themselves, this visually astonishing portrait of our planet is designed to humble the viewer. In an effort to grasp not only the fragility and beauty of this world, but the near-incalculable breadth of our impact on it, Planetary intellectually challenges us to reconsider our relationship with our home.

The Toronto Chapter of the Canadian Space Society will be holding a Yuri’s Night networking event on Friday, April 10th starting at 6:30 pm. It will be held at the Fox & Fiddle - Yorkville at 280 Bloor Street West, Toronto. It will be a fairly informal gathering with door prizes and there will be a chance for space groups to give a short blurb about their group and any upcoming events/projects. Come out, socialize over drinks and pub grub, renew old acquaintances, and make some new friends.

Speaker: Dr. Michael Reid, Dunlap Institute for Astronomy & Astrophysics The Big Bang Theory is one of the crowning achievements of modern science. The basic premise—that the universe began expanding about 14 billion years ago from a very hot, dense state—has been independently verified many times over. And yet there is widespread confusion and uncertainty about what the theory actually says—and what it doesn't. 

Jon Butterworth, University College London

Journey into space without leaving the library! Take in an educational and eye-opening science show inside a giant mobile dome. The Ontario Planetarium is presenting 7 shows throughout the day at the following times: 10AM, 11AM, 1PM, 2PM, 3PM, 4PM and 5PM. The 10AM, 11AM, 1PM, 2PM and 3PM shows are currently full. There are still spaces available in the shows at 4PM (for teens 13-17) and 5PM (for adults). To register or to be added to the waitlist, please call 416-395-5750.

As part of their 40th Anniversary Celebration Season, the Amadeus Choir will present "Of Heart and Tide: The Gift of Water" at Trinity-St. Paul's Centre (Jeanne Lamon Hall) with famed Canadian astronaut Dr. Roberta Bondar.

A free screening of the critically-acclaimed documentary, Particle Fever, followed by a question and answer period with York university researchers Wendy Taylor and Sean Tulin. Then, walk over to the York University Observatory to do a little research of your own with the observatory's telescopes.

Sarah Symons, Assistant Professor, McMaster University.

Come explore our precious place in the Cosmos featuring a talk by new Dunlap Institute Director Bryan Gaensler, planetarium shows, telescope observing, astronomy activities and exhibits, and a Chat with an Astronomer reception. Schedule•5:40 – 6:40 – Planetarium Shows (15 minutes each)•6:00 – 7:00 – Reception in the Earth Sciences Building Lobby•7:00 – 8:00 – Talk by Bryan Gaensler•8:00 – 8:15 – Post-Talk & Time to Walk to the Telescopes•8:15 – 10:00 – Telescope Observing, Activities, & Refreshments•8:30 – 9:30 – Earth Hour!