Universe

What theory explains the beginning of the universe?

• String Theory

• Big Bang Theory

• Steady State Theory

• Cosmic Dust Theory

What is thought to have existed immediately after the Big Bang?

• Planets

• Stars

• Plasma and energy

• Galaxies

How old is the universe estimated to be?

• 4.5 billion years

• 13.8 billion years

• 100 million years

• 500 billion years

What is dark matter?

• Anti-gravity force

• Visible dust in space

• Invisible matter that doesn’t emit light

• Black hole matter

What is the cosmic microwave background?

• Sound from black holes

• Leftover radiation from the Big Bang

• Light from stars

• Solar wind

Which event is believed to have formed the first atoms?

• Inflation

• Big Rip

• Recombination

• Supernova

What is the universe primarily made of today?

• Stars and planets

• Hydrogen and helium

• Dark energy and dark matter

• Ice and dust

What does the redshift of galaxies indicate?

• Galaxies are shrinking

• Galaxies are moving closer

• The universe is expanding

• Light is fading

Which of the following is one possible fate of the universe?

• Solar collapse

• Big Freeze

• Star reversal

• Moon shift

What is galaxy evolution?

• Galaxies becoming stars

• Gradual changes in galaxies over time

• Collapse of the universe

• End of stars