Planets

3. an object in space that orbits or circles around a bigger object
4. a yellow dwarf star, a hot ball of glowing gases at the heart of our solar system
7. a minor planet—an object that is neither a true planet nor a comet—that orbits within the inner Solar System.
8. an icy, small Solar System body that warms and begins to release gases when passing close to the Sun, a process called outgassing.
9. an astronomical object comprising a luminous spheroid of plasma held together by self-gravity

1. a system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravity
2. a large, rounded astronomical body that is neither a star nor its remnant.
4. the expanse that exists beyond Earth and its atmosphere and between celestial bodies.
5. all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy.
6. the curved trajectory of an object such as the trajectory of a planet around a star