Topic: ASTRONOMY
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cosmic ray [countable usually plural]
HA a stream of radiation reaching the Earth from space
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Definition of cosmic ray from the Longman Dictionary of Contemporary English within
the topic ASTRONOMY Explore ASTRONOMY Topic
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astronaut
astronomical
astronomy
astrophysics
black hole
celestial
comet
constellation
corona
cosmic
cosmology
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earth
eclipse(n)
eclipse(v)
galactic
galaxy
infinity
Jupiter
launch(v)
launch(n)
lunar
magnitude
Mars
Mercury
meteor
month
moon
NASA
nebula
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new moon
nova
observatory
orbit(v)
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outer space
phase
planet
plasma
Pluto
quadrant
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ring
rocket
satellite
Saturn
sea
solar
solar system
space
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star
stellar
sun
supernova
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Venus
wax
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