Understanding Dark Matter and Dark Energy

What is the main focus of cosmology?

• The study of Earth's atmosphere

• The study of the universe as a single physical object

• The study of stars and planets

• The study of human evolution

Who discovered that galaxies are receding away from us?

• Albert Einstein

• Isaac Newton

• Edwin Hubble

• Galileo Galilei

What does the big bang theory state?

• The universe was smaller, hotter, and denser in the past

• The universe is static and unchanging

• The universe has always existed in its current form

• The universe is contracting

What is dark matter believed to be made of?

• A new kind of particle with mysterious properties

• Antimatter

• Light particles

• Ordinary atoms

What was discovered about the universe's expansion in the late 1990s?

• It is slowing down

• It is accelerating

• It has stopped

• It is constant

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

• 66.2%

• 33.8%

• 70%

• 50%

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

• 4.5 billion years

• 20 billion years

• 13.77 billion years

• 10 billion years

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

• We know their exact properties

• We know how they behave but not what they are

• They are visible and easy to study

• They are not part of the universe

What did the PANTHEON+ survey measure?

• The temperature of the universe

• The positions of about 1,500 supernovae

• The speed of light

• The mass of dark matter

What is the ultimate goal of modern cosmology regarding dark matter and dark energy?

• To replace them with new theories

• To prove they don't exist

• To measure their properties as precisely as possible

• To ignore them