What is Dark Matter? A Mystery of the Universe

The video explores the concept of dark matter, explaining its mysterious nature and why it is called 'dark.' It discusses the composition of the universe, highlighting that dark matter makes up 26% of it, while ordinary matter is only 5%. The video presents evidence for dark matter, such as the observations by Fritz Zwicky and the phenomenon of gravitational lensing. It also explores theories about dark matter, including MACHOs and WIMPs, and the challenges in detecting it. The video emphasizes the evolving nature of scientific understanding and the possibility of future discoveries.

What percentage of the universe's energy density is made up of dark matter?

• 100%

• 69%

• 26%

• 5%

Who first suggested the existence of dark matter while studying the Coma Cluster?

• Albert Einstein

• Edwin Hubble

• Isaac Newton

• Fritz Zwicky

What phenomenon involves the bending of light due to gravity from massive objects?

• Black hole effect

• Gravitational lensing

• Electromagnetic interference

• Quantum tunneling

What are MACHOs in the context of dark matter?

• Magnetic cosmic halos

• Molecular cosmic halos

• Miniature cosmic halos

• Massive compact halo objects

Why can't dark dust and gas account for all the missing mass in the universe?

• They are too dense

• They are too small

• They are considered baryonic matter

• They are too luminous

What does WIMP stand for in the context of dark matter?

• Weakly Interacting Massive Particle

• Widely Interacting Magnetic Particle

• Weakly Influencing Magnetic Particle

• Widely Influencing Massive Particle

What is the main challenge in detecting WIMPs?

• They are too bright

• They interact only through gravitational pull

• They are too large

• They are too fast