Galactic Collisions and Cosmic Mysteries

What are the two major theories that contradict each other at the fundamental level of the universe?

• Quantum mechanics and string theory

• General relativity and string theory

• General relativity and quantum mechanics

• Dark energy and quantum mechanics

Why is the universe's expansion compared to raisins in rising bread dough?

• Because galaxies are shrinking

• Because galaxies are moving closer

• Because galaxies are moving apart

• Because galaxies are stationary

What is the speed at which the Milky Way and Andromeda are moving towards each other?

• 110 kilometers per second

• 68 miles per minute

• 68 miles per hour

• 110 kilometers per hour

What is the significance of the blue shift in the context of the Milky Way and Andromeda?

• It suggests the galaxies are moving towards each other

• It shows the galaxies are stationary

• It reveals the galaxies are shrinking

• It indicates the galaxies are moving apart

What did Project Amiga reveal about the Andromeda galaxy?

• It is moving away from the Milky Way

• It has no galactic halo

• Its merger with the Milky Way has already begun

• It is smaller than previously thought

What is the role of a galactic halo in the context of galaxy mergers?

• It is irrelevant to galaxy mergers

• It accelerates the merger process

• It slows down the merger process

• It prevents galaxies from merging

What is the expected fate of Earth when the Milky Way and Andromeda galaxies merge?

• Earth will become a new star

• Earth will be consumed by the sun

• Earth will remain unaffected

• Earth will collide with Andromeda

What is the probability that the shock waves from the merger could knock our solar system off the galaxy?

• 50%

• 5%

• 12%

• 25%

What is the estimated time frame for the Milky Way and Andromeda galaxies to fully merge?

• 4.5 billion years

• 6 billion years

• 2.5 billion years

• 1 billion years

What will happen to the stars from both galaxies during the merger?

• They will remain in their original orbits

• They will be thrown into new orbits

• They will collide with each other

• They will disappear