Understanding Dark Matter and Dark Energy

What is cosmology?

• The study of galaxies

• The study of stars

• The study of the universe

• The study of planets

Who discovered that the universe is expanding?

• Albert Einstein

• Isaac Newton

• Edwin Hubble

• Galileo Galilei

What is dark matter?

• A type of light

• A new kind of particle

• A type of star

• A type of galaxy

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

• 33.8%

• 50%

• 66.2%

• 70%

What is the age of the universe?

• 13.77 billion years

• 10 billion years

• 5 billion years

• 20 billion years

What is the main focus of modern cosmology?

• Finding new planets

• Exploring the moon

• Studying the sun

• Measuring the properties of dark matter and dark energy

What did the PANTHEON+ survey measure?

• The positions of planets

• The positions of supernovae

• The positions of galaxies

• The positions of stars

What is the big bang theory?

• A theory about the formation of galaxies

• A theory about the end of the universe

• A theory about the universe being smaller, hotter, and denser in the past

• A theory about the creation of stars

What is dark energy responsible for?

• The creation of galaxies

• The movement of planets

• The acceleration of the universe's expansion

• The formation of stars

What is the main challenge in understanding dark matter and dark energy?

• They are too small to study

• We know what they are but not how they behave

• We have no evidence of their existence

• We know how they behave but not what they are