A small, icy body that orbits the Sun.

A large, rocky body that orbits the Sun.

A ball of gas that orbits the Sun.

A star that orbits the Sun.

A stream of gas and dust that trails behind the comet.

A solid object that trails behind the comet.

A cloud of gas and dust that surrounds the comet.

A ring of gas and dust that surrounds the comet.

The solid, icy core of a comet.

The tail of a comet.

The cloud of gas and dust that surrounds a comet.

The ring of gas and dust that surrounds a comet.

The cloud of gas and dust that surrounds the nucleus of a comet.

The tail of a comet.

The solid, icy core of a comet.

The ring of gas and dust that surrounds a comet.

An elliptical orbit around the Sun.

A circular orbit around the Sun.

A parabolic orbit around the Sun.

A hyperbolic orbit around the Sun.

The time it takes a comet to orbit the Sun.

The time it takes a comet to travel from the Sun to its farthest point from the Sun.

The time it takes a comet to travel from its farthest point from the Sun to the Sun.

The time it takes a comet to complete one rotation on its axis.

The point in a comet's orbit that is farthest from the Sun.

The point in a comet's orbit that is closest to the Sun.

The point in a comet's orbit where the comet's velocity is zero.

The point in a comet's orbit where the comet's acceleration is zero.

The point in a comet's orbit that is closest to the Sun.

The point in a comet's orbit that is farthest from the Sun.

The point in a comet's orbit where the comet's velocity is zero.

The point in a comet's orbit where the comet's acceleration is zero.

A comet that was visible in the night sky for over a year.

A comet that had a tail that was over 100 million miles long.

A comet that was so bright that it could be seen during the day.

All of the above.

A comet that orbits the Sun every 76 years.

A comet that was first observed in 240 BC.

A comet that has been observed by humans more than any other comet.

All of the above.

A comet that collided with Jupiter in 1994.

A comet that was discovered by Eugene Shoemaker and Carolyn Shoemaker.

A comet that was named after the Shoemaker-Levy family.

All of the above.

A mission to send a spacecraft to impact a comet.

A mission to send a spacecraft to fly by a comet.

A mission to send a spacecraft to land on a comet.

A mission to send a spacecraft to orbit a comet.

A mission to send a spacecraft to collect samples from a comet.

A mission to send a spacecraft to fly by a comet.

A mission to send a spacecraft to land on a comet.

A mission to send a spacecraft to orbit a comet.

A mission to send a spacecraft to orbit a comet.

A mission to send a spacecraft to fly by a comet.

A mission to send a spacecraft to land on a comet.

A mission to send a spacecraft to impact a comet.

A mission to send a spacecraft to Pluto.

A mission to send a spacecraft to fly by a comet.

A mission to send a spacecraft to land on a comet.

A mission to send a spacecraft to orbit a comet.