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B2 Level Wordlist - Outer Space

Here you will learn some English words about outer space, such as "alien", "universe", "asteroid", etc. prepared for B2 learners.

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CEFR B2 Vocabulary
alien
alien
[noun]

a creature that is believed to exist in other worlds or planets

Ex: The idea of aliens visiting Earth has been a topic of debate and speculation, with various reports and sightings fueling conspiracy theories. 
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space
space
[noun]

any area beyond the Earth's atmosphere

Ex: Astronauts trained for travel in space. 
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outer space

the space outside the earth's atmosphere

Ex: Outer space is characterized by the absence of air, so astronauts must wear spacesuits to survive the vacuum and extreme conditions. 
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universe
universe
[noun]

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

Ex: Astronomers study distant galaxies to understand the vastness and complexity of the universe. 
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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: Scientists study asteroids to learn about the early solar system and potential threats to Earth. 
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black hole

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

Ex: Black holes are formed from the remnants of massive stars that have ended their life cycles and collapsed under their own gravity. 
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galaxy
galaxy
[noun]

a large number of star systems bound together by gravitational force

Ex: Galaxies can vary in shape and size, with types including spiral, elliptical, and irregular galaxies, each having distinct structures and characteristics. 
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solar system

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

Ex: Earth is one of eight planets in the solar system. 
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Mercury
Mercury
[noun]

the 1st and smallest planet in the solar system which is the closest to the sun

Ex: Mercury, the closest planet to the Sun, has surface temperatures that can reach up to 800 degrees Fahrenheit during the day. 
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Venus
Venus
[noun]

the 2nd planet of the solar system located between Mercury and earth

Ex: Venus, often called the "morning star" or "evening star," is the brightest natural object in the night sky after the Moon. 
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Mars
Mars
[noun]

the 4th planet of the solar system located between earth and Jupiter

Ex: Mars has fascinated astronomers for centuries due to its distinct reddish hue visible from Earth. 
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Jupiter
Jupiter
[noun]

the 5th and the largest planet of the solar system located between Mars and Saturn

Ex: Jupiter is the fifth planet from the sun in the solar system. 
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Saturn
Saturn
[noun]

the 6th planet of the solar system located between Jupiter and Uranus, which has rings around it

Ex: Saturn is the second-largest planet in the solar system, after Jupiter, and has a diameter about 9 times that of Earth. 
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Uranus
Uranus
[noun]

the 7th planet of the solar system with a blue-green color located between Saturn and Neptune

Ex: The Voyager 2 spacecraft flew by Uranus in 1986, providing the first close-up images and data about its rings and moons. 
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Neptune
Neptune
[noun]

the 8th planet of the solar system with a ring of icy particles around it

Ex: Neptune’s vibrant blue color is due to the presence of methane in its atmosphere, which absorbs red light. 
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astronomy
astronomy
[noun]

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

Ex: Advances in astronomy have led to the discovery of exoplanets orbiting other stars in our galaxy. 
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astronomer

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

Ex: The astronomer discovered a new exoplanet using advanced telescope technology. 
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landing
landing
[noun]

the act of an aircraft or spacecraft arriving on the ground or a solid surface

Ex: The astronauts successfully completed the landing on the surface of the Moon. 
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outer
outer
[Adjective]

situated on the outside of something else

Ex: The outer coating of the tablet protects it from moisture until it reaches the stomach. 
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orbit
orbit
[noun]

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

Ex: The satellite was placed into a stable orbit to continuously monitor weather patterns from space. 
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to orbit
to orbit
[Verb]

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

Ex: The moon orbits around the Earth once every 27.3 days. 
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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 lifted off from the launch pad, carrying a satellite into orbit around Earth. 
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satellite
satellite
[noun]

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

Ex: The weather satellite provided real-time images of storm systems to help meteorologists forecast the weather. 
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to launch
to launch
[Verb]

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

Ex: The military launched a missile as part of a test exercise. 
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takeoff
takeoff
[noun]

the process by which an aircraft leaves the ground and starts to fly

Ex: The plane’s takeoff was smooth, and passengers were soon enjoying the view from above the clouds. 
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spacecraft

a vehicle designed to travel in space

Ex: The spacecraft was launched to explore Mars and collect data about the planet's surface and atmosphere. 
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spaceman
spaceman
[noun]

someone who travels into space, such as an astronaut

Ex: The spaceman conducted scientific experiments in space to study the effects of microgravity on various materials. 
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spaceship
spaceship
[noun]

a kind of spacecraft used by astronauts to explore in space

Ex: Scientists are working on developing reusable spaceships to reduce the cost of space exploration. 
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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 serves as a platform for testing technologies needed for future deep-space exploration. 
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spacesuit
spacesuit
[noun]

clothing used by astronauts while traveling in space

Ex: During training, astronauts practiced maneuvering in their spacesuits to become accustomed to the added bulk. 
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spacewalk
spacewalk
[noun]

a period during which an astronaut moves outside an spacecraft in space, typically to perform repairs or experiments

Ex: The astronauts conducted a spacewalk to repair the solar panels on the International Space Station. 
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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: He used a telescope to observe the stars. 
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voyage
voyage
[noun]

a long journey taken on a ship or spacecraft

Ex: The space mission was a historic voyage to the International Space Station. 
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