What Do Astronauts Do

Discover the exciting world of astronauts and their role in space exploration. From training to research, astronauts play a crucial part in advancing human knowledge of the cosmos.


Space exploration has captured the imagination of humanity for decades. Astronauts play a vital role in this field, carrying out a variety of tasks both on Earth and in space.

Training and Preparation

Astronauts undergo rigorous training to prepare for their missions. This includes simulations, physical conditioning, and learning how to operate spacecraft and perform experiments in microgravity.

Space Missions

Once in space, astronauts conduct a range of activities. They perform experiments to advance scientific knowledge, conduct repairs and maintenance on the International Space Station, and even go on spacewalks to work on external equipment.

Research and Experiments

Astronauts are at the forefront of scientific research in space. They conduct experiments in areas such as biology, physics, and medicine to understand the effects of space on the human body and improve technologies for future space exploration.

Education and Outreach

Astronauts also play a role in educating the public about space exploration. They give interviews, participate in events, and engage with students to inspire the next generation of scientists and engineers.

Case Studies

One notable example is astronaut Scott Kelly, who spent a year aboard the ISS to study the long-term effects of space travel on the human body. His mission provided valuable insights into the challenges of prolonged space missions.


According to NASA, there have been over 500 astronauts who have flown to space since the beginning of human spaceflight. These individuals come from diverse backgrounds and nationalities, making space exploration a truly international endeavor.

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