No. Comets are not "on" anything. They are free objects in space.
Europa Europa was created on 1990-11-14.
Yes. In fact Europa is bigger than Pluto!
Europa is a Moon of Jupiter.
The singular form is comet, the plural form is comets, the possessive plural is comets'. Example: The comets' paths will not cross.
Comets are Comets and Asteroids are Asteroids
Europa was a figure from Greek Mythology. Lincoln had no effect on Europa.
comets
Comets
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Europa is a sattalite not a planet.
Europa is closer
no. no sand on europa mainly ice