Gravitational Lensing and Supernovae

What is the significance of the Einstein cross pattern in the context of gravitational lensing?

• It indicates the presence of multiple galaxies.

• It shows the distortion of a single galaxy.

• It is a pattern formed by dark matter.

• It represents multiple images of the same supernova.

How does a massive object like a galaxy cluster affect the space around it?

• It causes stars to form.

• It emits strong radiation.

• It bends the space, affecting the path of light.

• It creates a black hole.

What role does the Hubble Space Telescope play in observing gravitationally lensed supernovae?

• It predicts the formation of new galaxies.

• It captures images of lensed supernovae and traces light paths.

• It measures the temperature of distant stars.

• It detects gravitational waves.

Why are gravitationally lensed supernovae important for understanding the universe's expansion?

• They reveal the composition of stars.

• They help measure the distance to other galaxies.

• They provide data on the universe's temperature.

• They offer insights into the rate of the universe's expansion.

How do astronomers use predictions about supernova images to validate their models?

• By analyzing the chemical composition of supernovae.

• By measuring the brightness of stars.

• By observing the predicted appearance of supernova images.

• By comparing them with historical data.