Evidence for Big Bang Cosmology

The video explores the evidence supporting the Big Bang theory, starting with Olbers' paradox and the concept of a finite universe. It discusses Einstein's cosmological constant and the discovery of cosmic microwave background radiation by Penzias and Wilson. The video highlights the predictions of the Big Bang model, such as nucleosynthesis and galaxy formation, and the role of particle physics in understanding the early universe. It concludes with a summary of the evidence and a look at future cosmological exploration.

What paradox did Olbers propose regarding the night sky?

• Why the universe is expanding

• Why stars are not visible during the day

• Why the night sky is dark if the universe is infinite

• Why galaxies are evenly distributed

What did Einstein introduce to reconcile a static universe with his theory of relativity?

• The concept of dark matter

• The cosmological constant

• The theory of general relativity

• The idea of black holes

What discovery by Hubble changed the understanding of the universe?

• The existence of black holes

• The presence of dark matter

• The uniformity of cosmic microwave background

• The expansion of the universe

What did Penzias and Wilson accidentally discover?

• The expansion of the universe

• The existence of dark energy

• The cosmic microwave background radiation

• The first black hole

What does the Big Bang model predict about the early universe's composition?

• A universe with equal parts hydrogen and helium

• A universe with no helium

• A universe with about 3 to 1 ratio of hydrogen to helium

• A universe with more helium than hydrogen

What is the significance of the cosmic microwave background radiation?

• It disproves the Big Bang theory

• It is a remnant from the Big Bang

• It supports the steady state model

• It is evidence of the universe's static nature

What role do particle accelerators play in cosmology?

• They detect dark matter

• They measure the speed of light

• They test conditions of the early universe

• They create new galaxies

What does the Big Bang model predict about galaxy formation?

• Galaxies have always existed

• Galaxies formed 10 billion years after the Big Bang

• Galaxies formed about a half a billion years after the Big Bang

• Galaxies formed immediately after the Big Bang

What is the estimated age of the universe according to the Big Bang model?

• 13.8 billion years

• 20 billion years

• 10.5 billion years

• 15.2 billion years

Why are cosmologists confident in the Big Bang model?

• It was proposed by Einstein

• It is the only model available

• It fits all observational data

• It is a widely accepted myth