Meaning: People who travel to space are brave and curious about the universe.
Choice of Words: Astronauts, explore, space, with, courage.
Alternative Expressions
Astronauts are brave people who go into space.
Meaning: This sentence means that astronauts are people who have a lot of courage and go into space to explore.
Choice of Words: The word brave means someone who is not afraid of danger or difficulty. People are human beings. Go is a verb that means to move or travel somewhere. Space is the area beyond Earth's atmosphere.
Astronauts use their bravery to explore the vastness of space.
Meaning: This sentence means that astronauts rely on their courage to travel through the very large area of space and learn about it.
Choice of Words: The word use means to put something into action or service. Bravery is the quality of being brave. Explore means to travel through an area in order to learn about it. Vastness means very large or extensive. Space is the area beyond Earth's atmosphere.
With their courageous hearts, astronauts push the boundaries of human knowledge in space.
Meaning: This sentence means that astronauts have a lot of courage and use it to expand the limits of what people know about space.
Choice of Words: The word courageous means full of courage. Hearts are the organs that pump blood throughout the body. Push means to move something by applying force. Boundaries are limits or edges. Human refers to people. Knowledge is information or understanding. Space is the area beyond Earth's atmosphere.