People must live on Earth just as astronauts live in a spaceship.

VOA: special.2010.05.30

He called the planet "Spaceship Earth."

VOA: special.2010.05.30

Humans,he said, are astronauts on Spaceship Earth.

VOA: special.2010.05.30

Three Russians, an Italian-Colombian, a Frenchman and a Chinese man are making final preparations before spending 520 days inside a mock spaceship.

VOA: standard.2010.06.02