Exploring the Universe and Stars

Front

Universe

Back

space, time, matter, and energy

Front

Big Bang Theory

Back

explanation for universe's origin

Front

Star

Back

ball of gas held by gravity

Front

Nebula

Back

of gas and dust; star birthplace

Front

Main Sequence Star

Back

fusing hydrogen in its core

Front

Red Giant

Back

stage, expanded, cooler star

Front

White Dwarf

Back

core of low-mass star

Front

Supernova

Back

death of massive star

Front

Black Hole

Back

with gravity so strong, not even light escapes

Front

Doppler Effect

Back

in wavelength due to motion