Comets.
It is a comet.
No. It is a comet. It is too small to be a planet.
No. It is a comet. It is too small to be a planet.
Neither. It is considered a dwarf planet. It is much larger than a comet.
The planet Jupiter was hit by a number of fragments of the Comet Shoemaker-Levy9.
Depends on the comet. Size varies. But they are usually smaller.
Coma: the dust and gas surrounding an active comet's nucleus Comet: a medium-sized icy object orbiting the Sun; smaller than a planet.
The generally accepted order would be Comet, Asteroid, Moon, Planet, Sun. However, there is considerable overlap in sizes among asteroids and moons. Some of the moons of Saturn are fairly small, and the moons of Mars are both smaller than the average asteroid.
Yes. Comets are tiny; the Milky Way is enormous.
The Milky Way is neither a planet nor a comet. It is a spiral galaxy that contains our solar system and billions of stars, along with gas, dust, and dark matter. It is not a single object within our solar system like a planet or a comet.
Ceres is smaller than any planet; even smaller than Pluto.
Venus is a planet, not a comet, so it does not have a tail.