Exploring the Mysteries of Galaxies

What is the most beautiful type of galaxy according to the video?

• Dwarf Galaxy

• Elliptical Galaxy

• Irregular Galaxy

• Spiral Galaxy

What causes the spiral arms of a galaxy to glow brightly?

• The presence of black holes

• The gravitational pull of the galaxy

• The large, hot stars illuminating nearby dust clouds

• The collision of galaxies

Why don't the large bright stars in spiral galaxies live very long?

• They are ejected from the galaxy

• They burn through their fuel very quickly

• They collide with other stars

• They are consumed by black holes

What type of galaxy is the Milky Way?

• Elliptical Galaxy

• Irregular Galaxy

• Barred Spiral Galaxy

• Dwarf Galaxy

What is a key characteristic of stars in elliptical galaxies?

• They are very bright

• They are very large

• They are very old

• They are mostly new stars

What is the largest known galaxy in the universe?

• Milky Way

• Triangulum

• Andromeda

• IC 1101

What are irregular galaxies?

• Galaxies that are very small

• Galaxies that have a central bulge

• Galaxies that are not spiral or elliptical

• Galaxies that are very bright

What can cause a galaxy to become irregular?

• Gravitational influence or collision with another galaxy

• Presence of a supermassive black hole

• Lack of dust and gas

• Formation of new stars

What is the local group of galaxies?

• A collection of irregular galaxies

• A group of dwarf galaxies

• A single large galaxy

• A cluster of galaxies including the Milky Way, Andromeda, and Triangulum

How many galaxies are in the local group?

• About 20

• About 10

• About 40

• About 30