Why do astronauts study about space?

Astronauts study space to better understand the environment they will operate in, including the effects of microgravity on the human body and various materials. This knowledge is crucial for conducting experiments, ensuring safety, and making informed decisions during missions. Additionally, studying space contributes to broader scientific goals, such as exploring new frontiers, searching for extraterrestrial life, and understanding the origins of the universe. Ultimately, their research helps advance technology and scientific knowledge that can benefit life on Earth.