David Paige is Professor of Planetary Sciences at UCLA. He is a Principal Investigator on NASA’s Lunar Reconnaissance Orbiter mission, and also on NASA's MESSENGER spacecraft, which discovered ice on the Moon and on Mercury. For more information on David Page, visit: www.planetary.org/explore/projects/mcs/david-paige.html Refreshments afterwards

For more information, please read this new article.

Samantha Cristoforetti, Italian Astronaut, European Space Agency, in conversation with Canadian astronaut Roberta Bondar and Bryan Gaensler, Director of the Dunlap Institute for Astronomy & Astrophysics, University of Toronto.

Measuring light pollution of your sky, see www.globeatnight.org

Family Nights are a great introduction to the night sky for our younger guests. Look through telescopes, make some space crafts, visit the Skylab and find out what's really up there! Family Nights require tickets to be purchased in advance. This program runs regardless of sky or weather conditions. If skies are clear you can check out the night sky through a variety of telescopes including the biggest optical telescope in Canada! The evening also includes a presentation in our special Skylab that offers great (virtual) night sky viewing.

Showtimes: 12:30pm and 2:00pm **Please note that this show will geared towards children and costumes are encouraged!**

Paul Delaney, York University The search for Pluto started in 1781 with the confirmed observation of Uranus. It took until 1930 for an astronomer to find the "9th planet." Little did Clyde Tombaugh know the excitement his discovery would generate in the 21st century. However, the secrets of the last of the "classical planets" would not be revealed until the flyby of the New Horizons spacecraft in July 2015. This lecture will summarize the history of Pluto and the results sent back to date from New Horizons. The revelations are unexpected!

Showtimes: 7:00pm, 8:00pm, and 9:00pm

Showtimes: 7:00pm, 8:00pm, and 9:00pm

Dr. John R. Percy, Professor Emeritus, Astronomy & Astrophysics, University of Toronto Toronto is now a world centre of astronomy research, education, and public outreach. How did it get that way? In this illustrated presentation, John will explore our rich astronomical heritage, from the 1830's to today, as well as astronomy's connections to other sciences, society, and culture. Based on a Heritage Toronto walking tour, developed for International Year of Astronomy 2009.

Chris Hadfield is back with something completely new: Generator. Blending the line between education and entertainment, Generator will bring together scientists, musicians, comedians and more to deliver an energetic evening of organized chaos. Some of the names you’ll know by heart, others you’ll come to love. Chris Hadfield’s Generator is exploration through the eyes of explorers. From the caverns of the mind to the endless universe, we’re here to celebrate the journey that is one step further.

Come scream under the stars at the David Dunlap Observatory October 27, 28, 29, 30 8:00 pm to 10:30 pm Be afraid. Be very afraid. Who can attend: everyone including non-membersFee: $10 at the doorReservation not needed Location: David Dunlap Observatory (DDO)