Exploring the Universe

Front

The Big Bang

Back

Origin of the universe, 13.8 billion years ago

Front

Milky Way

Back

Our galaxy, spiral-shaped

Front

Light Year

Back

Distance light travels in one year, about 5.88 trillion miles

Front

Black Hole

Back

Region with strong gravitational pull, nothing can escape

Front

Nebula

Back

Cloud of gas and dust, birthplace of stars

Front

Dark Matter

Back

Invisible matter, makes up about 27% of the universe

Front

Redshift

Back

Light stretches, indicates universe is expanding

Front

Supernova

Back

Explosive death of a star, creates heavy elements

Front

Cosmic Microwave Background

Back

Radiation left from the Big Bang, evidence of early universe

Front

Exoplanet

Back

Planet outside our solar system