Cosmology Concepts

noun a subatomic particle such as an electron or a proton

adjective relating to elementary particles

• An elementary particle is a subatomic particle with no substructure.
• Scientists study tiny things called elementary particles to understand the building blocks of the universe.
• You won't believe how small elementary particles are!
• In the grand scheme of the universe, we are all just like elementary particles moving around in chaos.

noun a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction

• Scientists study the formation and evolution of galaxies in the universe.
• Have you seen the latest pictures of the Andromeda galaxy?
• That new phone has a camera that can take pictures that are out of this galaxy!
• Her imagination is like a galaxy, full of endless possibilities.

noun the quality or state of being insignificant; lack of importance or significance

• The insignificance of the data made it difficult to draw any meaningful conclusions.
• I felt a sense of insignificance when I realized how small I was compared to the vast universe.
• She made me feel like total insignificance with her snide remarks.
• The towering skyscrapers around me emphasized my own insignificance in the bustling city.

noun a noun is a word that represents a person, place, thing, or idea. In this case, 'island universe' is a noun phrase that refers to a galaxy or a group of galaxies that are isolated or separated from other galaxies by vast distances.

• An island universe refers to a self-contained galaxy or cluster of galaxies.
• I read about this cool concept called island universe, it's like a galaxy on its own.
• Did you know each galaxy is basically an island universe in space?
• In her mind, she created an island universe where only her thoughts existed.

noun the Big Freeze - a noun phrase referring to a period of extremely cold weather

adjective a word that describes or modifies a noun

article a word that specifies a noun as definite or indefinite

• The Big Freeze refers to a period of extremely cold weather with freezing temperatures.
• We better stock up on firewood for the Big Freeze coming next week.
• I heard we're in for the Big Freeze this winter, better bundle up!
• The Big Freeze of emotions between them made it difficult to communicate.