Exoplanets and Universe Facts

The video provides an overview of the universe, explaining its composition, size, and expansion. It covers the origins of the universe, the substances it comprises, and the concept of inflation. The video also shares interesting facts about galaxies and planets, concluding with a call to explore more about the universe.

What does the term 'universe' mean?

• A group of planets

• A single galaxy

• A collection of stars

• Everything combined into one cosmic system

What percentage of the universe is made up of dark energy?

• 5%

• 27%

• 100%

• 68%

What is the primary component of normal matter?

• Dark energy

• Atoms

• Dark matter

• Light

According to the Big Bang Theory, how old is the universe?

• 4.5 billion years

• 13.7 billion years

• 100 million years

• 10 trillion years

What is the estimated diameter of the observable universe?

• 1 million light years

• 7 trillion light years

• 250 billion light years

• 93 billion light years

Who discovered that the universe is expanding?

• Albert Einstein

• Isaac Newton

• Edwin Hubble

• Galileo Galilei

What is the phenomenon called when the universe expands?

• Contraction

• Inflation

• Explosion

• Compression

How many stars are estimated to be in the Milky Way?

• 500 million

• 100 billion

• 10 trillion

• 1 billion

As of March 21, 2022, how many exoplanets have been confirmed?

• 50,000

• 10,000

• 5,000

• 1,000

What is the estimated number of galaxies in the observable universe?

• 100 billion

• 1 trillion

• 500 billion

• 1 million