Galaxies

What type of galaxy is the Milky Way?

• Spiral
• Barred Spiral
• Irregular
• Elliptical

How many stars make up The Milky Way?

• 100 Million
• 100 Billion
• 400 Billion
• 800 Billion

On what arm of the Milky Way is our Solar System found?

• Scutum-Crux Arm
• Carina-Sagitarius Arm
• Great Orion Arm
• Outer Cygnus Arm

Where can the Solar System be found when looking at the Milky Way from above?

• In the center of the galaxy
• On the edge of the galaxy
• About 2/3rds of the way out from the center
• About 1/3rd of the way out from the center

How long does it take the Sun to make one complete revolution around the center of the Milky Way?

• 220 Million Years
• 220 Million Light-Years
• 220 Billion Years
• 220 Billion Light-Years

The three main parts of a spiral galaxy include all of the following, EXCEPT...

• The central bulge
• The halo
• The arms
• The disk

Most of the mass of the Milky Way galaxy is thought to be...

• The black hole at its center
• Dark matter
• Dust and gas
• Main-sequence stars and planets

There is a super massive black hole in the center of the Milky Way galaxy. 

• True
• False

The super massive black hole at the Milky Way's center is 26 million times more massive than our Sun.

• True
• False

The Milky Way is approximately twice as old as the Solar System.

• True
• False