Astronauts have to know how to take apart and ___ equipment on the International Space Station in case it needs to be repaired.

The International Space Station is usually ___ by a crew of six people.

Who stole my pen? Nobody leaves the room until I find the ___.

Not everyone is cut out to be an astronaut - the idea of spending so many days in space can be very ___ .

Crew members preparing to travel to the International Space Station are ___ so that they don’t become sick before the big journey.

One of the future ___ to the International Space Station is going to include the international recording artist Sarah Brightman.

In spite of the stress of his job, he is a very ___ character - very easy-going and pleasant to talk to.

Having an astronaut as part of the family can be very complicated, but NASA provides support to help families ___ the situation.

People who want to become astronauts have to study ___ in order to master the necessary science, math, and languages.

When people are working together in a small space like the International Space Station, it is important to have someone acting as a ___ who can help the crew avoid arguments.

The training crew ___ every day for a practice session, preparing for life on the space station.

Although life on the International Space Station seems adventurous, there are still many ___ tasks that have to be performed, such as cooking and cleaning.

The training facility was ___ by a huge pool that took up all the space in the building.

The International Space Station is located in low-Earth ___, and it circles the planet about 16 times per day.