Four astronauts from three countries&nbsp;are en route to the International Space Station after a successfully NASA's&nbsp;SpaceX launch.&nbsp;<br />”&nbsp;<br />”A SpaceX Crew Dragon spacecraft, carrying four astronauts took off from NASA's Kennedy Space Center in Florida,US&nbsp;yesterday, beginning their six-month stay&nbsp;aboard the International Space Station.<br />”&nbsp;<br />”NASA astronauts Shane Kimbrough and Megan McArthur will be joined by French astronaut Thomas Pesquet of the European Space Agency, and Akihiko Hoshide from Japan.<br />”&nbsp;<br />”<span style="color: #222222;">This launch marked the third-ever crewed flight for Elon Musk's company and the first to make use of a previously flown rocket booster and spacecraft.</span><br />