Comets remind us of the vastness of the universe.

Meaning: Comets help us to understand how big the universe is.

Choice of Words: Comets are celestial objects that often have a tail. Remind means to cause someone to remember something. Us refers to the people speaking or writing. Vastness means the great size or extent of something. Universe is the entire space and time in which everything exists.

Alternative Expressions

Comets are like dirty snowballs in space.

Meaning: Comets are objects that are made up of ice, dust, and rock, and they look like big, dirty snowballs in space.

Choice of Words: Comets are objects that travel through space and are made up of ice, dust, and rock. Dirty means not clean, and snowballs are balls made of snow. So, Comets are like dirty snowballs in space means that comets are like big, dirty balls of ice and dust that travel through space.

Comets are visitors from the outer parts of our solar system.

Meaning: Comets come to our part of space from the parts that are farther away from the sun.

Choice of Words: Comets are objects that travel through space. Visitors are people or things that come to a place for a short time. Outer means the part that is farther away from the center. Solar system is the group of planets, moons, and other objects that orbit the sun. So, Comets are visitors from the outer parts of our solar system means that comets come to our part of space from the parts that are farther away from the sun.

Related Expressions