Cosmology Quiz

What is cosmology the study of?

• The study of cosmic rays

• The study of the universe as a whole

• The study of dark matter and dark energy

• The study of stars and planets

What did astronomer Edwin Hubble discover about galaxies?

• That galaxies are static and unchanging

• That galaxies are moving closer to us

• That galaxies exist and are very far away from us

• That galaxies are only found within our solar system

According to modern cosmology, how has the universe changed since its beginning?

• It has become smaller and hotter

• It has become larger and is expanding

• It has remained the same size and temperature

• It has become denser and colder

What does the big bang theory suggest about the early universe?

• It was larger and cooler than it is today

• It was smaller, hotter, and denser than it is today

• It was populated with stars and galaxies from the beginning

• It was in a state of complete entropy and disorder

What is dark matter?

• A type of matter that interacts with light and normal matter

• A type of matter that does not interact with light or normal matter

• A type of energy responsible for the universe's expansion

• A new streaming service

What percentage of the cosmos' mass energy is taken up by dark energy?

• About 33.8%

• About 50%

• About 70%

• About 66.2%

What is the age of the universe according to modern cosmology?

• 13.77 billion years old

• 13.77 million years old

• 4.54 billion years old

• 4.54 million years old

What did the PANTHEON+ survey measure?

• The precise positions of about 1,500 galaxies

• The precise positions of about 1,500 stars

• The precise positions of about 1,500 supernovae

• The precise positions of about 1,500 planets

What is the combined percentage of dark energy and dark matter in our universe according to the study mentioned in the text?

• 33.8%

• 66.2%

• 70%

• 100%