what do astronauts do on the rocket
What do astronauts do on the International Space Station
(ISS)?
Astronauts and
cosmonauts on the space station stay busy. There’s lots of work to operate
the many science experiments on board. The crew also has to
make sure that the station is in top shape, so they clean, check equipment,
maintain and repair or replace broken equipment. Crew members also must
exercise two hours each day to stay fit and keep their bones and muscles
strong.
How fast and how
high do astronauts go?
The space station
travels through space at 17,500 miles per hour at an altitude of about 220
miles. They orbit the Earth about once every 90 minutes. During the orbit of
the Earth, they are in daylight for about 45 minutes and darkness for about 45
minutes. That means the sun will rise and set 16 times a day.
How long are the
missions?
The ISS missions,
called expeditions, usually last about six months. There are three to six crew
members on board at all times. Professional astronaut crews come from the U.S.,
Russia, Japan, Canada and Europe. NASA astronaut Mike Lopez-Alegria has flown
the longest U.S. space station mission to date, at 215 days. Valeri Polyakov, a
Russian cosmonaut, spent 437 days in space during one mission.
What kind of food do astronauts eat?
astronauts bring
along several different types of food when we fly in space. Since we don’t have
a freezer, refrigerator, stove or microwave, most of the food has already been
cooked, then freeze dried and vacuum packed or it is thermally
stabilized much like camping food. These packages of freeze
dried food can be reconstituted by adding water and then warmed up in a small
warming oven.
How do
astronauts go to the bathroom in space?
The space potty is a little different than the Earth potty.
First of all, to keep from floating away,astronauts must use foot-loops or
straps while ‘sitting’ on the seat. This holds you on to the seat, sort of like
a seat belt. Secondly, the space potty uses suction, not water, to ‘flush.’
What do astronauts do
if they get sick in the space
Astronauts carry first aid kits and some special medical
equipment into space with us. Astronauts
also are trained to take care of most minor and some major medical
problems. There is not a doctor on most flights, but all crew members are
trained in basic first aid and CPR.
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