Clouds around Jupiter that are low, warm, and dark. They sink!

A ratio of the distance between the foci to the length of the major axis of an ellipse; a calculation to determine the percentage of deviation from a circle

The shape of the planets' orbitals around the Sun

The large planets - Jupiter, Saturn, Uranus, Neptune

A form of hydrogen with the properties of a liquid and a metal; core of Jupiter

Colliding particles in the early solar system that formed our planets

The apparent backward movement of a planet; led to the geocentric model

The system of cliffs on a planet

The four inner planets - Mercury, Venus, Earth, Mars

Small, icy body that has a head and a tail

Must orbit the Sun; be nearly spherical; has not cleared the orbit of debris

The streak of light produced by a meteoroid

A meteoroid that hits the ground

An asteroid fragment

A body that orbits another; a moon

The particles of a comet's trail that burn up in our atmosphere

An area of rock and ice outside Neptune's orbit

Must orbit the Sun; be nearly spherical; has cleared its orbit of debris

High, cool, light-colored clouds over Jupiter