The Race for the Next-Gen Space Station

Since November 2000, there have always have been a select few people living apart from the rest of us—the astronauts and cosmonauts on the International Space Station. On any list of humanity’s greatest engineering achievements, the ISS almost always ranks near the top. It is as long as a football field, as spacious as a jumbo jet. It has made more than 123,000 orbits in 21 years.