Scientists and engineers estimate it will take about eight months for a Mars mission to travel to the Red Planet. What impact will eight months in microgravity have on astronauts and explorers?
Existing research on personnel deployed to the International Space Station suggests that time spent in microgravity causes significant changes to human physiology. So, scientists planning Mars missions are faced with big challenges: how to protect the human body during the months-long journey to Mars and ensure astronauts are in good physical condition upon arrival.
These challenges must be met before humans can undertake a journey to explore Mars.
person who takes part in space flights.
person who plans the building of things, such as structures (construction engineer) or substances (chemical engineer).
to guess based on knowledge of the situation or object.
physical force by which objects attract, or pull toward, each other.
International Space Station (ISS)
satellite in low-Earth orbit that houses several astronauts for months at a time.
fourth planet from the sun, between Earth and Jupiter.
employees or all people working toward a common goal.
having to do with the body.
study of activity in living organisms, including physical and chemical processes.
large, spherical celestial body that regularly rotates around a star.
scientific observations and investigation into a subject, usually following the scientific method: observation, hypothesis, prediction, experimentation, analysis, and conclusion.
person who studies a specific type of knowledge using the scientific method.
important or impressive.