10SCI - Cosmology, the Universe and the Big Bang Theory

Front

Cosmology

Back

The study (science) of the origin and development of the universe

Front

Universe

Back

Everything (all the matter, energy, time, and space) that exists. Made up of galaxies which contain stars and planetary systems

Front

Galaxy

Back

A large group (billions) of stars, gas, and dust held together by gravity

Front

Star

Back

A huge glowing ball of hot gas, mainly hydrogen and helium

Front

Solar System

Back

A star and all the material that orbits it, including its planets and moons

Front

The Sun

Back

A medium-sized star around which the earth and other planets in our solar system revolve

Front

Planet

Back

A large, spherical, non-luminous celestial body which orbits a star, may be rocky, icy, or gaseous in composition

Front

Milky Way

Back

The galaxy in which our solar system is located

Front

Satellite

Back

An object that revolves around another object in a path called an orbit

Front

Asteroid

Back

A relatively small celestial body made of rock that orbits a star