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Smart Reasoning:
C&E
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Causes
Effects
Kohoutek
discovered
Comet Kohoutek
Czech astronomer Lubos Kohoutek
(passive) was discovered by
Comet Kohoutek
by Czech astronomer Lubos Kohoutek
(passive) discovered by
Comet Kohoutek
Czech astronomer Lubos Kohoutek
(passive) discovered by
Comet Kohoutek
March
(passive) is discovered
Comet Kohoutek
in March
(passive) was discovered
Comet Kohoutek
in October 1983
(passive) was discovered
comet." Phaethon
in January
(passive) was just discovered
Comet Pojmanski
Rosetta
(passive) is set
Comet 67P
Aren Heinze
(passive) was discovered by
Comet Heinze
in 1969
(passive) was discovered
Comet 67P
Crimean amateur astronomer Gennadiy Borisov
(passive) was discovered by
Comet Borisov
MIT 's Lincoln Near Earth Asteroid Research ( LINEAR ) survey
(passive) was discovered by
Comet 252P
on December 20 , 1900
(passive) was discovered
Comet 21P
by Russian Scientists Russian astronomers
(passive) Discovered by
Comet
at the end of May
(passive) was discovered
Comet Boattini
by ESA & NASA Solar Observatory June 19
(passive) Discovered by
Comet
Amateur astronomers
discovered
comet _ _ _ _ _ - _ _ _ _ _
by amateur astronomers
(passive) discovered by
comet
the most mysterious amateur astronomer
discovered
Comet
The Lincoln Near - Earth Asteroid Research ( LINEAR ) team
discovered
Comet
the example of the late great Australian comet hunter , Bill Bradfield ,
discovered
comet
by ESA & NASA Solar Observatory
(passive) Discovered by
Comet
Comet Hale - Bopp Comet Hale - Bopp
discovered
Comet
back on Dec. 21 , 1900
(passive) was discovered
Comet 21P
Messier 's comet search ... January 7 , 1785 , ... 1785
discovered
comet
Ukrainian amateur astronomer Gennady Borisov
(passive) has been discovered by
comet
First comet of 1997
discovered
Comet
November Astronomers
discover
comet
by European astronomers Wilhelm Tempel and Horace Tuttle
(passive) discovered by
comet
by ESA and NASA Solar Observatory Science Daily Astronomy
(passive) discovered by
comet
in late July 2002
(passive) was first discovered
Comet Hoenig
Maria Mitchell
discovered
comet
Previous Terry Lovejoy
discovers
comet
Terry Lovejoy
(passive) was discovered by
comet
by Terry Lovejoy
(passive) discovered by
Comet
by University of Hawaii astronomers
(passive) just discovered by
comet
Robert McNaught 7 August 2006
(passive) was discovered by
comet
Alan Hale and Thomas Bopp
discovered
Comet
Ernst Wilhelm Leberecht
(passive) was discovered by
Comet Tempel
the Eta Aquarids meteor shower each May.
also causes
the Eta Aquarids meteor shower each May.
a natural disaster
(passive) caused by
a natural disaster
The first of her kind
(passive) was designed
The first of her kind
independently
discovered
independently
in 1973
was discovered
in 1973
co - operatives
(passive) led by
co - operatives
in June 2011
discovered
in June 2011
mass
would cause
mass
in the Kuiper belt
originated
in the Kuiper belt
the New Arona tap
have designed
the New Arona tap
behind Mt. Cathedral
sets
behind Mt. Cathedral
in 1969
discovered
in 1969
the grounding of the entire fleet
prompted
the grounding of the entire fleet
from the region of the Oort 's Cloud
originating
from the region of the Oort 's Cloud
in the sixties by Churyumov and Gerasimenko
was ... discovered
in the sixties by Churyumov and Gerasimenko
to collide with Earth and cause a mass extinction
set
to collide with Earth and cause a mass extinction
Perseids meteor shower could crash into Earth
causes
Perseids meteor shower could crash into Earth
a global cataclysm if it hit Earth
would cause
a global cataclysm if it hit Earth
great Chicago fire SUN 5
caused
great Chicago fire SUN 5
great Chicago fire SUN 5
caused
great Chicago fire SUN 5
catastrophe on Earth
may have caused
catastrophe on Earth
of dust and ice
composed mainly
of dust and ice
some water to the earth
may have contributed
some water to the earth
the grounding of the entire fleet pending an investigation
prompted
the grounding of the entire fleet pending an investigation
in the Oort cloud
originated
in the Oort cloud
Massive Solar Explosion
Did ... Cause
Massive Solar Explosion
Tunguska explosion
caused
Tunguska explosion
Tunguska explosion and
caused
Tunguska explosion and
Perseids meteor shower
causes
Perseids meteor shower
in a meteor shower that had an astounding 3,000 meteors per hour visible
resulted
in a meteor shower that had an astounding 3,000 meteors per hour visible
of millimetre - sized dust pebbles
is composed
of millimetre - sized dust pebbles
a massive alien spacecraft
discovers
a massive alien spacecraft
of dust and rock particles
composed
of dust and rock particles
from the spacecraft images
discovered
from the spacecraft images
solar explosion Not likely
Did ... cause
solar explosion Not likely
widespread large mammal extinctions
may have caused
widespread large mammal extinctions
solar explosion
Did ... cause
solar explosion
of ice not solid space rock
mainly composed
of ice not solid space rock
of ice not solid space rock , and more
mainly composed
of ice not solid space rock , and more
a massive CME ( solar flare ) in the direction of Earth
could cause
a massive CME ( solar flare ) in the direction of Earth
Smart Reasoning:
C&E
See more*