SpaceX launched its fifth Starship test flight on Sunday. The company's goal is to build a resuable rocket that could reach the moon one day, and maybe even Mars. Colonel Chris Hadfield was the first Canadian to walk in space, completing multiple space missions, spacewalks, and even serving as commander of the International Space Station back in 2013. With SpaceX reaching a new milestone this week, he joined us recently to take your questions about all things space-related.