Universe

Front

Big Bang Theory

Back

A scientific theory concerning the early development and shape of the universe from a dense state, which began and is still expanding

Tags

NGSS.HS-ESS1-2

Front

Black Hole

Back

A region in space where gravity is so strong that even light cannot escape

Front

Cosmic Microwave Background

Back

Electromagnetic radiation that remains from the Big Bang and early stages of the universe

Tags

NGSS.HS-ESS1-2

Front

Galaxy

Back

A system of stars and associated matter held together by gravitational attraction

Front

Hertzsprung-Russell Diagram

Back

A diagram that shows the relationship between the brightness, surface temperature, and color of stars

Front

Luminosity

Back

Total amount of light (energy) emitted by a star or other celestial body

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS4-3

Front

Magnitude

Back

The measure of the observed visible brightness of a star

Front

Milky Way Galaxy

Back

The galaxy which contains our Sun and its solar system, including Earth

Tags

NGSS.MS-ESS1-2

Front

Nebula

Back

Clouds of dust and gas; site of star formation; remains of dead or dying stars

Tags

NGSS.HS-ESS1-3

Front

Red-Shift

Back

Observations of galaxies moving away from each other and our own Milky Way galaxy

Tags

NGSS.HS-ESS1-2