What are the three main types of galaxies?

• Spiral, Elliptical, Irregular

• Circular, Triangular, Square

• Flat, Round, Chaotic

• Star, Gas, Dust

Which type of galaxy is the Milky Way?

• Elliptical

• Irregular

• Spiral

• Circular

What do elliptical galaxies mostly contain?

• Young stars and lots of gas

• Older stars and less gas

• Chaotic structures

• Flat, rotating disks

How do irregular galaxies often appear?

• Well-organized

• Chaotic

• Flat and rotating

• Spherical

What binds a galaxy together?

• Magnetic fields

• Gravity

• Light

• Sound waves