Fun and learning blast off over two space-themed days. There's something for everyone at the Canadian Warplane Heritage Museum this Family Day weekend! Have you always wanted to meet an astronaut? This is your opportunity! Canadian Astronaut Dr. Dave Williams will be at the museum at 1 pm for a presentation on aviation and spaceflight. Dr. Dave will also be available for book signings after his presentation. NOTE: Astronaut Dave will be here ONLY on Saturday February 18. Want to…