Hubble Trivia: 13) What does Hubble’s infrared vision help astronomers see?

The video explains how infrared light allows us to see through dust clouds and observe cooler objects like planets. It highlights the ability of longer wavelengths to bend around obstacles, enabling us to view inside opaque clouds such as the Orion and Eagle Nebulae. Additionally, the video discusses the importance of infrared in observing distant galaxies, which appear to be moving away due to the universe's expansion. The light from these galaxies is stretched, shifting from visible to infrared wavelengths, necessitating the use of infrared telescopes to study them.

How does infrared light help us see through dust clouds?

• It changes the color of the dust particles.

• It bends around the dust particles.

• It absorbs the dust particles.

• It reflects off the dust particles.

Which nebulae are mentioned as examples where infrared light helps us see inside?

• Ring Nebula and Cat's Eye Nebula

• Carina Nebula and Tarantula Nebula

• Orion Nebula and Eagle Nebula

• Crab Nebula and Helix Nebula

Why do distant galaxies appear to be moving away from us?

• Due to the expansion of the universe

• Because of the gravitational pull of nearby stars

• Due to the rotation of the Milky Way

• Because they are being pushed by cosmic winds

What happens to the light from distant galaxies as the universe expands?

• It becomes brighter

• It shifts to shorter wavelengths

• It remains unchanged

• It shifts to longer wavelengths

What type of telescope is needed to observe the first galaxies?

• Radio telescope

• Optical telescope

• Infrared telescope

• X-ray telescope