Since 1998, humanity’s had a permanent presence in space with the International Space Station. The ISS, which circles the Earth once every 90 minutes, is a model of global cooperation: A joint cooperation among five national space agencies, crewed by astronauts from more than 15 countries. Take an inside look at the daily life and science that goes on inside the space station whizzing by at more than 200 miles above our heads.
By: World Science Festival Staff
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via Science In The International Space Station – World Science Festival.
This is an excellent introduction to the grade 9 space unit. Thanks for sharing it.