Ask an expert: Space entrepreneur Arad Gharagozli on how SpaceX’s ISS mission will advance space exploration

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Four astronauts aboard the SpaceX-designed Crew Dragon capsule Resilience successfully launched into space from Kennedy Space Center in Florida earlier this week. Lifting off on Sunday evening, the crew — consisting of three NASA astronauts and one astronaut with the Japanese Space Agency — spent 27 hours in flight before docking at the International Space Station some 422 kilometers above the U.S. state of Idaho.The joint NASA-SpaceX mission represents the first time an American commercial spacecraft was used to transport a full international crew to the ISS. SpaceX, a privately-owned rocket company founded by high-tech entrepreneur Elon Musk, previously sent a two-person test flight to the ISS for two months earlier this year. The astronauts will spend the next six months conducting a number of experiments on how microgravity affects human heart tissue and how different types of light and soil will impact efforts to produce food in space.   We asked Arad Gharagozli, founder and president of Dalhousie’s Space Systems Lab, CEO of GALAXIA Mission Systems Inc., and a mechanical engineering student in the Master of Engineering program at Dal to explain how SpaceX is changing the future of space exploration and why the Dragon’s launch represents a significant moment …

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