As NASA Aims For The Moon, An Aging Space Station Faces An Uncertain Future

When a rocket carrying the first module of the International Space Station blasted off from Kazakhstan in November of 1998, NASA officials said that the station would serve as an orbiting home for astronauts and cosmonauts for at least 15 years.

It's now been over 18 years that the station has been continuously occupied by people. The place is impressive, with more living space than a six-bedroom house, two bathrooms and a large bay window for looking down at Earth.

NASA and its international partners have spent decades and more than $100 billion to make the station a reality. The trouble is, as the agency sets its sights on returning people to the moon, the aging station has become a financial burden. And it's not clear what its future holds.