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aerospace
/ˈɛɹoʊˌspeɪs/
noun
the earth's atmosphere and the space beyond it
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astrobiology
/æstɹˌoʊbaɪˈɑːlədʒi/
noun
a branch of biology that deals with the study of life in space
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atmospheric
/ˌætməsˈfɛɹɪk/
adjective
related to the atmosphere of the earth
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cosmic
/ˈkɑzmɪk/
adjective
related to the universe and the vast space outside the earth
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full moon
/fˈʊl mˈuːn/
noun
the complete and round-shaped moon as seen from the earth
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half-moon
/hˈæfmˈuːn/
noun
the moon when only half of its bright surface can be seen from the earth
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new moon
/nˈuː mˈuːn/
noun
the moon when only a small portion of its bright side is visible from the earth
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to go down
/ɡˌoʊ dˈaʊn/
verb
(of the sun or moon) to go out of sight below the horizon
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big bang
/bˈɪɡ bˈæŋ/
noun
the explosion that, according to most scientists, caused the existence of the universe
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cosmos
/ˈkɑzmoʊs/
noun
the universe, particularly when it is thought of as a systematic whole
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celestial body
/səlˈɛstjəl bˈɑːdi/
noun
any natural object in the space, such as the sun, moon, etc.
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the Milky Way
/ðə mˈɪlki wˈeɪ/
noun
a pale band of light seen in the sky at night that contains the solar system and billions of other stars
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constellation
/ˌkɑnstəˈɫeɪʃən/
noun
a specific group of stars that form a pattern and have a name related to their shape
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zodiac
/ˈzoʊdiˌæk/
noun
(astronomy) the celestial zone in the sky where the sun, moon, and planets appear to move, traditionally divided into twelve equal segments, each associated with a distinct name and symbol
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comet
/ˈkɑmət/
noun
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
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dwarf
/ˈdwɔɹf/
noun
a star that is relatively small in size or mass and is not very bright
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exoplanet
/ɛɡzˈɑːplɐnˌɛt/
noun
a planet that is outside the solar system
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meteor
/ˈmitiɝ/
noun
a piece of rock coming from outer space that passes through the Earth's atmosphere, producing light
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meteorite
/ˈmitiɔˌɹaɪt/
noun
a piece of rock or metal from space that has hit the surface of the earth
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nebula
/ˈnɛbjəɫə/
noun
a glowing cloud of gas and dust in outer space, often the result of a star explosion or formation
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supernova
/ˌsupɝˈnoʊvə/
noun
an exploding star that as a result is emitting a very large amount of light, more than the sun
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NASA
/ˈnæsə/
noun
a US government agency responsible for space travel and the study of space
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mission
/ˈmɪʃən/
noun
an operation carried out in space
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cosmonaut
/ˈkɔzməˌnɔt/
noun
an astronaut from Russia or the former Soviet Union
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to lift off
/lˈɪft ˈɔf/
verb
(of a spacecraft or aircraft) to leave the ground, particularly vertically
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axis
/ˈæksəs/
noun
an imaginary line in the middle of an object around which the object revolves
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rotation
/ɹoʊˈteɪʃən/
noun
the action of circular movement around a fixed point
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space shuttle
/spˈeɪs ʃˈʌɾəl/
noun
a vehicle designed and used to go to space and return multiple times
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unidentified flying object
/ˌjuˌɛˈfoʊ/
noun
a mysterious object that some people claim to have seen flying around in the sky and assume that it is a spaceship from another world
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weightless
/ˈweɪtɫəs/
adjective
having or seeming to have no or little weight, caused by the absence of gravity
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