Understanding the Universe and SpaceTime

What event is believed to have created the universe 13.8 billion years ago?

• The Galactic Formation

• The Great Expansion

• The Big Bang

• The Cosmic Web

What is the primary role of SpaceTime in the universe?

• To form black holes

• To create stars

• To organize the cosmic web

• To expand galaxies

How does SpaceTime affect the movement of light and matter?

• By changing their color

• By increasing their mass

• By dictating their path

• By altering their speed

What is the relationship between gravity and SpaceTime?

• Gravity is the cause of SpaceTime expansion

• Gravity is unrelated to SpaceTime

• Gravity is a result of SpaceTime curvature

• Gravity is a force that opposes SpaceTime

What led to the formation of stars and galaxies in the early universe?

• The contraction of SpaceTime

• The cooling of SpaceTime

• The expansion of SpaceTime

• Fluctuations in SpaceTime

What would the universe be like without the curvature of SpaceTime?

• A thin haze of hydrogen gas

• A dense cluster of stars

• A collection of black holes

• A vast empty void

What are gravitational waves?

• Magnetic waves in galaxies

• Ripples in SpaceTime

• Sound waves in the universe

• Light waves from distant stars

What cosmic event can create gravitational waves?

• The birth of a star

• The expansion of a galaxy

• The collision of two black holes

• The formation of a planet

What was the significance of the 2015 LIGO observation?

• First measurement of cosmic expansion

• First observation of a black hole

• First direct detection of gravitational waves

• First detection of a new galaxy

How do gravitational waves provide a new way to observe the universe?

• By allowing us to see new colors

• By letting us hear cosmic events

• By enabling us to touch distant stars

• By helping us smell cosmic dust