Understanding Dark Matter and Dark Energy

What is the main focus of cosmology?

• The study of stars and planets

• The study of the universe as a single physical object

• The study of Earth's atmosphere

• The study of ocean currents

Who discovered that the universe is expanding?

• Edwin Hubble

• Isaac Newton

• Albert Einstein

• Galileo Galilei

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

• 70%

• 66.2%

• 33.8%

• 50%

What is dark matter believed to be made of?

• Light particles

• A new kind of particle with mysterious properties

• Cosmic dust

• Ordinary atoms

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

• 20 billion years

• 4.5 billion years

• 13.77 billion years

• 10 billion years