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The Space Environment and Its Effects on the Human Body: Overview of the Space Environment and Its Challenges
Abstract
On Earth, we are shielded by the planet's magnetic field and atmosphere from the majority of particles that make up the space radiation environment. Even so, everyone on Earth is exposed to low levels of radiation every day, from the food we eat to the air we breathe. But in space, astronauts are exposed to varied and increased levels of radiation that are different from those on Earth. Three major sources contribute to the space radiation environment: particles trapped in Earth's magnetic field, solar energetic particles from the Sun, and galactic cosmic rays. The primary focus of Artemis missions from a space radiation perspective is developing the capability to accurately monitor the deep space radiation environment and its effect on the human body. Artemis missions will provide a unique opportunity to evaluate the hazards astronauts will face in a true deep space environment, before embarking on the years-long journey to Mars.
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