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Vocabulary for IELTS (General) - Space

Here you will learn some English words about space, such as "atmosphere", "launch", "aerospace", etc. that are needed for the IELTS exam.

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Words for General IELTS
astronaut
astronaut
[noun]

someone who is trained to travel and work in space

Ex: He wrote a memoir detailing his experiences as an astronaut, including his spacewalks and scientific research .
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atmosphere

the layer of gases surrounding a planet, held in place by gravity

Ex: Without an atmosphere, the Moon has no weather or air .
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space station

a large structure used as a long-term base for people to stay in space and conduct research

Ex: The space station's modules are equipped with living quarters , laboratories , and observation windows .
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sunlight
sunlight
[noun]

the natural light coming from the sun

Ex: She felt the sunlight on her face as she stepped outside after a long day indoors .
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moonlight
moonlight
[noun]

the light coming from the moon

Ex: The campers enjoyed telling stories around the fire , with moonlight shining through the trees .
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asteroid
asteroid
[noun]

any of the rocky bodies orbiting the sun, ranging greatly in diameter, also found in large numbers between Jupiter and Mars

Ex: Some asteroids contain valuable minerals and resources that could be mined in the future .
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astronomer

a scientist who studies or observes planets, stars, and other happenings in the universe

Ex: Modern astronomers use computer simulations and mathematical models to predict celestial events and phenomena .
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astronomy
astronomy
[noun]

a branch of science that studies space, planets, etc.

Ex: The university offers a course in astronomy for students interested in space exploration .
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galaxy
galaxy
[noun]

a large number of star systems bound together by gravitational force

Ex: Observations of distant galaxies help astronomers understand the early universe and the processes that led to the formation of galaxies.
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to launch
to launch
[Verb]

to send an object, such as a satellite, missile, etc., into space

Ex: SpaceX is preparing to launch another batch of Starlink satellites into low Earth orbit .
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to orbit
to orbit
[Verb]

to move around a star, planet, or a large object in space

Ex: The dwarf planet Pluto orbits the sun in a region of space known as the Kuiper Belt .
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rocket
rocket
[noun]

a propulsion device with its own fuel that produces thrust through reaction forces

Ex: Safety protocols are crucial when handling a rocket.
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satellite
satellite
[noun]

a natural body in space that moves around the earth or other planets

Ex: Scientists study the satellites of Neptune to learn more about its formation and history .
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solar system

the sun and the group of planets orbiting around it, including the earth

Ex: Scientists believe the solar system formed over 4.5 billion years ago .
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spacecraft

a vehicle designed to travel in space

Ex: After completing its mission , the spacecraft re-entered Earth 's atmosphere and safely returned with samples collected from space .
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to voyage
to voyage
[Verb]

to travel over a long distance by sea or in space

Ex: The poet penned verses about sailors who voyaged to the ends of the Earth .
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aerospace
aerospace
[noun]

the earth's atmosphere and the space beyond it

Ex: Advances in aerospace technology have led to more efficient and safer air travel around the world .
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constellation

a specific group of stars that form a pattern and have a name related to their shape

Ex: The constellation Cassiopeia forms a distinct " W " shape in the northern sky .
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gravity
gravity
[noun]

(physics) the universal force of attraction between any pair of objects with mass

Ex: The strength of gravity on Earth 's surface is approximately 9.81 meters per second squared ( m / s² ) .
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lunar
lunar
[Adjective]

relating to the moon

Ex: Lunar craters are formed by meteorite impacts on the moon's surface.
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meteor
meteor
[noun]

a piece of rock coming from outer space that passes through the Earth's atmosphere, producing light

Ex: The Perseid meteor shower is one of the most famous annual meteor showers, visible in August.
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rotation
rotation
[noun]

a single complete circular movement around an axis or along an orbit

Ex: The model shows the rotation of planets in the solar system .
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axis
axis
[noun]

the central point or line around which an object turns

Ex: The sculpture slowly revolved on its central axis.
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weightless
weightless
[Adjective]

having or seeming to have no or little weight, caused by the absence of gravity

Ex: During a zero-gravity flight , passengers enjoy the sensation of being weightless for short periods .
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mission
mission
[noun]

an operation carried out in space

Ex: NASA 's Voyager spacecraft embarked on a historic mission to explore the outer planets of our solar system .
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booster
booster
[noun]

a rocket that gives a spacecraft or missile the extra power it needs to leave the Earth's atmosphere

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countdown
countdown
[noun]

the act of counting numbers backwards to zero before the launch of a missile or spacecraft

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probe
probe
[noun]

an unmanned spacecraft or device sent to gather information from space and transmit it back

Ex: The probe sent back high-resolution images .
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to wane
to wane
[Verb]

(of the moon) to gradually decrease in its visible illuminated surface as it progresses from full to new moon

Ex: The moon 's brightness started to wane just a few days after the full moon .
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to wax
to wax
[Verb]

(of the moon) to progressively display a larger illuminated section until it turns into a full moon

Ex: The moon waxes, reaching full brightness in about two weeks.
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