The video discusses the universe's origin in the Big Bang around 14 billion years ago. It highlights the unexplained aspects of the universe, including its increasing expansion speed and the fact that most of its mass is invisible.

What is the origin of the universe according to the video?

• The Big Bang

• The Steady State Theory

• The Multiverse Theory

• The Oscillating Universe

Approximately how many years ago did the Big Bang occur?

• 14 billion years ago

• 10 billion years ago

• 20 billion years ago

• 5 billion years ago

What is one of the unexplained aspects of the universe mentioned in the video?

• The shape of galaxies

• The speed of light

• The color of stars

• The universe's increasing expansion speed

What is a characteristic of the universe's expansion?

• It is slowing down

• It is constant

• It is increasing in speed

• It is reversing

What is a significant challenge in understanding the universe's mass?

• It is concentrated in one area

• It is too small to measure

• Most of it is invisible

• It is constantly changing