||ISS is the
first human settlement in space. It will cost 16 nations $60 billion,
and will be completed in 2006.
Life on the ISS At 6 a.m.
(Greenwich Mean Time) the ISS inhabitants wake up to an alarm over the
loudspeaker, and get out of their sleeping bags that are strapped to the
walls. For the next hour, the astronauts do three complicated tasks. Eat
breakfast, go to the bathroom, and take a shower. They also change
clothes, but without the convenience of a washer or dryer, they change
into disposable clothes Now, the first three astronauts on the ISS are
making sure that everything works and is up and ready for the next crew.
The main things they are working on are making sure the systems for
having clean air, clean water, and electricity work. The system for
having clean air is not as complex as the other systems, but is still
complicated. All of the hydrogen on board is put out into space, because
it is highly flammable. The carbon dioxide that is exhaled during a
breath is also put into space. All water on the ISS is used. The water is filtered
out after going to the bathroom. Lab rats are going to be brought to the
ISS so when they perspire, water is filtered out of their sweat. Even
the water vapor from exhaling will be used. Electricity is needed to
power everything on board. Eight solar panels are used to convert
sunlight into electricity.