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| earth |
(often capitalized) the fifth largest planet in our solar system and the third in distance from the sun. [1/4 definitions] |
| Jupiter |
the largest planet in the solar system and fifth in distance from the sun. Jupiter has sixteen moons and is more than one thousand times larger than Earth. [1/2 definitions] |
| Mars |
the seventh largest planet in the solar system and fourth in distance from the sun. Mars is known as "the red planet" because of its unusual color. [1/2 definitions] |
| mercury |
(capitalized) the planet of the solar system that is nearest to the sun. Mercury is the second smallest planet. [1/3 definitions] |
| Milky Way |
the galaxy that contains the earth, the sun, and the solar system. It can be seen in the night sky as a long, cloudy group of stars. |
| Neptune |
the fourth largest planet in the solar system and eighth in distance from the sun. [1/2 definitions] |
| planet |
a large body in outer space that circles around the sun or another star. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto are all planets in our solar system. |
| Pluto |
a dwarf planet in the Earth's solar system, formerly considered a planet and the one that was smallest and farthest from the sun. [1/2 definitions] |
| Saturn |
the second largest planet in the solar system and sixth in distance from the sun. Saturn is known for the icy rings that circle its middle. [1/2 definitions] |
| sun |
the star in the middle of our solar system. The earth and other planets revolve around it and receive heat and light from it. [1/5 definitions] |
| Uranus |
the third largest planet in the solar system and seventh in distance from the sun. [1/2 definitions] |
| Venus |
the sixth largest planet in the solar system and second in distance from the sun. Venus has a dense, cloudy atmosphere. The clouds that cover Venus reflect light and make it the brightest planet. [1/2 definitions] |
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