Are nebulae actually this colourful? What does Hubble really see?

The video explores the captivating images of nebulae captured by the Hubble Space Telescope, explaining their composition and the science behind their vibrant colors. It delves into the nature of H II regions, known as stellar nurseries, and how they contribute to star formation. The video also discusses the process of assigning colors to nebula images, distinguishing between natural and false color representations. Additionally, it covers various types of nebulae, including reflection and dark nebulae, highlighting their unique characteristics.

What is the average number of particles per cubic centimeter in a nebula?

• 10 to 100 particles

• 10,000 particles

• 1 million particles

• 10 quintillion particles

What are H II regions commonly known as?

• Black holes

• Reflection nebulae

• Stellar nurseries

• Dark nebulae

How do emission nebulae emit light?

• Through ionization of atoms

• By reflecting starlight

• Through gravitational waves

• By absorbing light

What does each color in a Hubble image of a nebula represent?

• Different temperatures

• Different sizes

• Different ionized atoms

• Different distances

What is the primary purpose of using filters in Hubble's imaging process?

• To enhance brightness

• To identify specific elements

• To reduce noise

• To increase resolution

What type of nebula reflects or scatters starlight?

• Planetary nebula

• Reflection nebula

• Dark nebula

• Emission nebula

How do dark nebulae appear in the sky?

• Pitch black

• Slightly bluish

• Glowing red

• Bright and colorful