They're people who explore space
scientists use spacecraft without people to explore space because scientists need to know more about space and the solar system
To explore the world unknown up there.
the spaceship was used to explore outer space
It helps people see farther into space and learn more things about it.
Many of them wants to fulfill their dreams. Some of them wants to explore space.
the reason was because they wanted people to go outer space and explore and not to die
Space probes explore space for a quite obvious reason; they are SPACE probes. They probe space.
Space
space stations use a variety of objects to explore space. probes and the Hubble Space Telescope are main ones.
To explore and look at other planets and further
Astronauts are people who travel in space.