Exploring the Fate of the Universe

What is the main topic introduced at the beginning of the video?

• The expansion of the universe

• The lifecycle of stars

• The concept of a black dwarf universe

• The formation of the universe

How many galaxies are estimated to exist in the universe according to NASA?

• 100 billion

• 200 billion

• 400 billion

• 300 billion

What is one possible fate of the universe mentioned in the video?

• The Big Bang

• The Big Crunch

• The Big Shift

• The Big Leap

What stage will the sun enter in about 4 billion years?

• Neutron star

• Black hole

• Red giant

• White dwarf

What happens to the sun's mass when it becomes a white dwarf?

• Half is lost to space

• It doubles

• It remains the same

• It triples

What is a black dwarf?

• A hypothetical star type

• A neutron star

• A type of galaxy

• A massive black hole

In a black dwarf universe, what is the likelihood of life existing?

• Guaranteed

• Almost zero

• Moderate

• Very high

What might life need to do to survive in a black dwarf universe?

• Stop the universe's expansion

• Find a new planet

• Create a new sun

• Transcend to a non-physical form

How long until Earth becomes too hot to live on due to the sun's changes?

• 3 billion years

• 500 million years

• 1 billion years

• 2 billion years

What is a more immediate concern for Earth than the black dwarf universe?

• The sun's red giant phase

• The formation of new galaxies

• The cooling of the universe

• The creation of new stars