Homeostasis

Two middle school students work together on a laptop while a teacher looks on in the background.

Living Space

Participating classes will explore how indoor environmental conditions influence human health, and identify the best conditions for healthy living. This knowledge is important not only on Earth, but also on the International Space Station (ISS), the future Lunar Gateway, and as long-duration space travel progresses, maybe even on Mars!
International Space Station in the rays of the Sun

Temperature on Earth and on the ISS

Temperature is an important part of life on Earth and life in space. This backgrounder explains what temperature is, how it affects people and how it is controlled on the International Space Station.
Condensation on the window of the Apollo 12 Lunar Module, November 1969

Humidity on Earth and on the ISS

Humidity is an important part of life on Earth and life in space. This backgrounder explains what humidity is, how it is measured and how it affects us both mentally and physically.