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Vocabulary for IELTS Academic (Band 5) - Astronomoy

Here, you will learn some English words related to Astronomoy that are necessary for the Basic Academic IELTS exam.

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Vocabulary for IELTS Academic (Band 5)
orbiter
orbiter
[noun]

a spacecraft with the purpose of cricling around a celectial obejct without landing on it

Ex: Data from the Venus orbiter revealed new details about its toxic clouds .
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astrology
astrology
[noun]

the study of the movements of stars and planets that are thought to affect people and the world

Ex: Some people use astrology to guide decisions in areas such as relationships , career choices , and personal development .
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satellite
satellite
[noun]

an object sent into space to travel around the earth and send or receive information

Ex: He studied images sent by a satellite in space .
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universe
universe
[noun]

all that exists in the physical world, such as space, planets, galaxies, etc.

Ex: Philosophers and physicists ponder the ultimate fate and origin of the universe.
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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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star
star
[noun]

(astronomy) a shining point found in large numbers in the night sky

Ex: We used a telescope to observe distant stars and galaxies .
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planet
planet
[noun]

a huge round object that moves in an orbit, around the sun, or any other star

Ex: Saturn 's rings make it one of the most visually striking planets in our solar system .
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sun
sun
[noun]

the large, bright star in the sky that shines during the day and gives us light and heat

Ex: The sunflower turned its face towards the sun.
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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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orbit
orbit
[noun]

the path an object in the space follows to move around a planet, star, etc.

Ex: When a spacecraft enters the orbit of another planet , it must adjust its velocity to achieve a stable trajectory .
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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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spacesuit
spacesuit
[noun]

clothing used by astronauts while traveling in space

Ex: The spacesuit’s bulky design is necessary to provide insulation and pressure in the vacuum of space .
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shuttle
shuttle
[noun]

A spacecraft designed to transport people or equipment between Earth and a space station or other celestial destination, typically capable of multiple trips

Ex: The shuttle's heat shield protected it during re-entry into Earth 's atmosphere .
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rocket
rocket
[noun]

a spacecraft that moves up by the force of the gases produced when the fuel burns

Ex: The rocket’s engines ignited , generating the thrust needed to overcome Earth 's gravity and reach space .
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cosmos
cosmos
[noun]

the universe, particularly when it is thought of as a systematic whole

Ex: Understanding the cosmos requires interdisciplinary collaboration across astronomy , cosmology , and physics .
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NASA
NASA
[noun]

a US government agency responsible for space travel and the study of space

Ex: NASA's Artemis program aims to return astronauts to the Moon and establish a sustainable lunar presence by the 2020s .
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moon
moon
[noun]

the circular object going around the earth, visible mostly at night

Ex: The moon looked so close , as if we could reach out and touch it .
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telescope
telescope
[noun]

a piece of equipment by which the far objects, particularly those in space, are made clearly visible

Ex: They purchased a telescope to enhance their night sky observations .
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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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black hole

a place in the space with such high gravity that pulls in everything, even light

Ex: The boundary surrounding a black hole, beyond which nothing can escape , is called the event horizon .
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light-year

the distance that light travels in a year (about 9.46 trillion kilometers)

Ex: The telescope captured light from a quasar billions of light-years away .
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the Milky Way

a pale band of light seen in the sky at night that contains the solar system and billions of other stars

Ex: Ancient cultures observed the Milky Way and incorporated it into their myths and legends.
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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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big bang
big bang
[noun]

the explosion that, according to most scientists, caused the existence of the universe

Ex: Scientists continue to explore the implications of the Big Bang theory through astronomical observations and theoretical physics.
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