The next four people to launch to the International Space Station have arrived at their launch site.

NASA's SpaceX Crew-11 flight is more than just a crew rotation — it lands during a historic moment in spaceflight: the 25th anniversary of uninterrupted human habitation aboard the ISS.

What does it take to make a rocket launch into millions of living rooms and why does the technology behind the scenes mean so much as the spectacle itself? With NASA gearing up for the SpaceX Crew-11 mission to the International Space Station,