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The scientific study of the universe

astronomer

noun

someone who studies the stars and planets using scientific equipment including telescopes

astronomical telescope

noun

a telescope used to look at distant objects such as stars and planets by using either reflected or refracted light

astronomical unit

noun

a unit for measuring distance in space

astronomy

noun

the scientific study of the stars, planets, and other objects in the universe

the Big Bang

noun

an explosion that some scientists believe happened 15 billion years ago and caused the universe to begin to exist. This belief is called the Big Bang Theory.

chaos

noun

the state believed to have existed before the universe gained order, in which it had no shape or form

cosmology

noun

the study of the origin and nature of the universe

observatory

noun

a study centre or a building with a telescope which scientists called astronomers use to study the stars and planets

radio telescope

noun

a very large piece of equipment that receives and records the radio waves that come from stars and other objects in space

stargazer

noun

someone who studies the stars

steady state theory

noun

the theory that the universe has always existed and that the movements of stars have always happened, which is opposed to the big bang theory

stargazing

noun

Word of the Day

stargazer

someone who studies the stars

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