Although Mercury is close to the sun, its nighttime temperatures are low because of its thin

The solar system probably formed from a rotating ___ of gas and dust

Pluto is unlike the terrestrial planets in that it is composed of both rock and____

The atmosphere of Venus is primarily composed of ____gas

Pluto's moon is called

Our Sun and its planets ______

Fixed path that one body of matter follows around another

Earthlike planets _______

Earth's twin

The Red planet

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