DEMO

What did Edwin Hubble discover about the universe?

• That dark matter is the main component of the universe

• That the universe is shrinking

• That galaxies exist and are receding away from us

• That the universe is static

What is dark matter?

• A new kind of particle that does not interact with light or normal matter

• A form of matter that interacts with light

• A theory that has been disproven

• A type of energy that accelerates the expansion of the universe

When was dark energy discovered?

• In the late 1990s

• In the 1980s

• In the 1970s

• In the early 2000s

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

• 33.8%

• 50%

• 66.2%

• 70%

What is the main goal of modern cosmology?

• To study the behavior of black holes

• To find habitable planets

• To measure the properties of dark matter and dark energy as precisely as possible

• To explore the solar system

What does the big bang theory state?

• The universe is contracting

• The universe is infinite and unchanging

• The universe was once smaller, hotter, and denser than it is today

• The universe is composed entirely of dark matter and dark energy

What did the two teams of astronomers discover in the late 1990s?

• The existence of black holes

• That the expansion of the universe is accelerating

• The first exoplanet

• The presence of water on Mars

How old is the universe, according to modern cosmology?

• 10 billion years

• 15 billion years

• 13.77 billion years

• 4.5 billion years