Exploring the Universe with Telescopes

What was the primary goal of astronomers after Galileo's initial discoveries?

• To develop new mathematical theories

• To make bigger telescopes

• To explore the ocean depths

• To study the Earth's core

What phenomenon allows the Abell 2744 cluster to act as a lens?

• Cosmic radiation

• Solar flares

• Gravitational lensing

• Magnetic fields

What is the main objective of the Frontier Fields program?

• To map the surface of Mars

• To find new planets in our solar system

• To explore the first billion years of the Universe

• To study the Earth's atmosphere

What was one of the significant discoveries made through the Frontier Fields program?

• A new species of star

• A new type of black hole

• A distant galaxy 30 times smaller but 10 times more active than the Milky Way

• A new planet in our solar system

How many galaxy clusters is the Frontier Fields program targeting as gravitational lenses?

• Twelve

• Nine

• Six

• Three