IELTS VOCABULARY

Astronaut

Meaning: A person trained to travel and work in space.
Example: Astronauts undergo years of rigorous training before they are sent on space missions.

Satellite

Meaning: An object placed in orbit around the Earth or another planet to collect information or for communication.
Example: Weather satellites help scientists predict storms and monitor climate changes.

Orbit

Meaning: The curved path of a planet, satellite, or spacecraft around a celestial body.
Example: The Earth’s orbit around the Sun takes approximately 365 days.

Spacecraft

Meaning: A vehicle designed for travel or operation in outer space.
Example: The spacecraft successfully landed on Mars after a seven-month journey.

Telescope

Meaning: An instrument used to observe distant objects in space.
Example: Powerful telescopes allow astronomers to study distant galaxies.

Galaxy

Meaning: A system of millions or billions of stars held together by gravity.
Example: Our solar system lies within the Milky Way galaxy.

Cosmos

Meaning: The universe seen as a well-ordered whole.
Example: Many scientists dedicate their lives to understanding the mysteries of the cosmos.

Astronomer

Meaning: A scientist who studies celestial objects, space, and the universe.
Example: Astronomers have discovered thousands of exoplanets in recent years.

Rocket

Meaning: A vehicle or device powered by a jet engine that carries payloads or humans into space.
Example: Rockets must overcome the Earth’s gravity to reach orbit.

Launch

Meaning: To send a spacecraft or missile into the air or space.
Example: The space agency plans to launch a new satellite next month.