Hubble's Galaxy-Observing Superpowers

The video discusses the capabilities of the Hubble Space Telescope in observing galaxies, highlighting its ability to capture images of distant galaxies and phenomena like gravitational lensing. It showcases Hubble's 27th birthday image of two spiral galaxies and explains how gravitational lensing allows us to see galaxies billions of light years away. The video also touches on the early universe, showing a galaxy as it appeared 600 million years after the Big Bang.

What is a galaxy primarily composed of?

• A group of asteroids

• A cluster of black holes

• Billions or trillions of stars and other matter

• A collection of planets

How far away are the two spiral galaxies in Hubble's 27th birthday image?

• 5 million light years

• 500 million light years

• 55 million light years

• 5 billion light years

What phenomenon allows Hubble to see thousands of galaxies in the frontier fields image?

• Black hole absorption

• Cosmic radiation

• Gravitational lensing

• Solar flares

What is the name of the galaxy cluster that acts as a gravitational lens in the video?

• Cluster 42

• Andromeda

• Abell 370

• Milky Way

How old is the light from the farthest galaxy observed in the image?

• 600 million years after the Big Bang

• 1 billion years after the Big Bang

• 3 billion years after the Big Bang

• 2 billion years after the Big Bang