A former Canadian astronaut is on his way to Muskoka. Marc Garneau is hosting a presentation tonight at the Rene Caisse Theatre in Bracebridge on “Science Matters.”  The event starts at 6pm and tickets at $15 dollars in advance or $20 dollars at the door. Then coming up in June Chris Hadfield will visit the Summit Centre in Huntsville for a community presentation. Hadfield boarded a six-month mission aboard the International Space Station in December 2012.