English Words for "Astronomy and Aerospace Science" | SAT Vocabulary

astronomer

noun

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

Example

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The astronomer discovered a new exoplanet using advanced telescope technology.

Astronomers observe distant galaxies to study their formation and evolution over billions of years.

astrophysicist

noun

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a scientist who studies the physical properties and phenomena of celestial objects and the universe as a whole

planetarium

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a device that simulates the motion and appearance of celestial objects such as planets, stars, and galaxies, typically using projectors and optical systems to depict the solar system and universe

celestial

Adjective

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related to or occurring in the sky or outer space

asteroid

noun

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

meteorite

noun

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a piece of rock or metal from space that has hit the surface of the earth

supernova

noun

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an exploding star that as a result is emitting a very large amount of light, more than the sun

Grammatical Information:

Plural form

supernovae

constellation

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

comet

noun

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an object in space that is a mass of ice and dust and when it nears the sun it starts illuminating in the shape of a tail

white dwarf

noun

/wˈaɪt dwˈɔːɹf/

a small, dense, and faint stellar remnant that is left after a medium-sized star exhausts the nuclear fuel in its core and undergoes gravitational collapse

exoplanet

noun

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a planet that is outside the solar system

asteroid belt

noun

/ˈæstɚɹˌɔɪd bˈɛlt/

a region in the solar system located between the orbits of Mars and Jupiter, populated by numerous small celestial bodies called asteroids

to orbit

Verb

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

Grammatical Information:

transitive

corona

noun

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the outer layer of the Sun's atmosphere, observable as a plasma halo during a solar eclipse

flare

noun

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a sudden, brief burst of increased brightness observed from the sun's surface, usually accompanied by a burst of energy and radiation

planetary

Adjective

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related to or characteristic of planets or the solar system

crater

noun

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a depression on the surface of a celestial body, formed by the impact of cosmic debris such as meteoroids or asteroids

extraterrestrial

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relating to or originating from outside the Earth or its atmosphere

photosphere

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the visible surface of a star, including the Sun, where energy is emitted as light and other forms of electromagnetic radiation

to eclipse

Verb

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to overshadow another astrological body

annular eclipse

noun

/ɐnjˈʊlɑːɹ ɪklˈɪps/

a type of solar eclipse where the moon, passing between the earth and the sun, appears smaller than the sun, creating a ring of sunlight around the darkened moon

interstellar

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situated or occurring between stars or within the space that exists between stars

Nebula

noun

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a glowing cloud of gas and dust in outer space, often the result of a star explosion or formation

Grammatical Information:

Plural form

Nebulae

proper noun

aurora

noun

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a natural light display in the Earth's polar regions, caused by the collision of charged particles from the sun with atoms in the Earth's atmosphere

tektite

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a small, natural glassy object formed from terrestrial debris ejected during meteorite impacts, known for its smooth texture and found in strewn fields across the Earth's surface

armillary sphere

noun

/ˈɑːɹmɪlɚɹi sfˈɪɹ/

a model of the celestial sphere, historically used to depict and study the positions of celestial objects, consisting of a series of hoops representing important circles in the sky

aeronautics

noun

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the science and practice of designing, building, and operating aircraft, including airplanes and spacecraft

spacecraft

noun

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a vehicle designed to travel in space

to launch

Verb

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

Grammatical Information:

transitive

launch pad

noun

/lˈɑːntʃ pˈæd/

a designated area at a spaceport or rocket launch site where rockets or spacecraft are positioned and prepared for liftoff

space shuttle

noun

/spˈeɪs ʃˈʌɾəl/

a vehicle designed and used to go to space and return multiple times

Grammatical Information:

compound noun

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