Actually, that's one of the things I like most about my job: There isn't much of a day-to-day. For example, last week, I was flying with the RCAF, flying CF-18s. Today, I was going through my annual physical. I take language classes, I learn robotics and spacewalking, so every week is different.

I realize that the 2020s are going to be completely different than this decade has been. There's going to be rapid progress. One of the most important aspects is going to be cheaper access to space. It changes everything. We have the ideas and the technology to do a lot of things, but we're limited financially, so, by reducing the cost of access to space, the whole problem is changed. Ultimately, the pieces that are coming together are going to allow us to send humans to Mars - and bring them back.

I really love sharing with young Canadians the changes we're seeing in the space program right now with what we call "commercial space." We have commercial cargo delivery to the space station, and now we have what we call "commercial crew," where we're going to be delivering people to low orbit on new vehicles that are being designed by Boeing and SpaceX.

Actually, that's one of the things I like most about my job: There isn't much of a day-to-day. For example, last week, I was flying with the RCAF, flying CF-18s. Today, I was going through my annual physical. I take language classes, I learn robotics and spacewalking, so every week is different.

I think my career will end too early for me to go to Mars, though I might be involved in preparing the next generation to go. I'd love to explore Mars, but, ultimately, it's kind of a crappy planet. The thing is, Mars One people would never go outside without a spacesuit ever again. You're going to live in a tin can. Space stations are noisy; it's like living inside a computer with the fan on all the time. You're never going to smell grass or trees. It's just never going to be anything like Earth. You're never going to swim. You're giving up so much.

NEEMO missions are a challenging and exciting aspect of astronaut training. The research we conduct during those missions allows us to test new technologies and exploration concepts in conditions similar to the ones we'll experience in space. They are a great opportunity to help me expand my knowledge and develop new tools for future space exploration.

For me, the passion of being an astronaut was ignited at an early age. I have this recollection of looking at a picture of the Apollo program - Neil Armstrong standing on the Moon - then looking at the night sky and realizing that, right where I was looking, people stood and looked back at the Earth. Even as a fairly young child, that was not lost on me, and it inspired me to pursue my dream. I didn't know if I would ever become an astronaut, of course, and the odds are not in your favour, but I just kept it in the back of my mind and tried to keep those options open.