What is cosmology?

• The study of the universe as a single physical object

• The study of stars and planets

• The study of the Earth's atmosphere

• The study of human cultures

Who discovered that galaxies exist and are receding away from us?

• Isaac Newton

• Edwin Hubble

• Galileo Galilei

• Albert Einstein

What percentage of the universe is made up of dark energy according to the PANTHEON+ survey?

• 50%

• 66.2%

• 70%

• 33.8%

What is dark matter?

• The energy that causes the universe to expand

• A new kind of particle with a mysterious identity and properties

• A type of matter that interacts with light

• The visible matter in the universe

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

• 13.77 billion years

• 10 billion years

• 20 billion years

• 4.5 billion years